Dr. Theo A. ten Brummelaar Profile

Dr. Theo A. ten Brummelaar

Director at CHARA Array

SPIE Involvement:

Author

Publications (109)

SPIE Journal Paper | 6 June 2023 Open Access

Open Access

MYSTIC: a high angular resolution K-band imager at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Jacob Ennis, Laurent Jocou, Nour Ibrahim, Stefan Kraus, Matthew Anderson, Sorabh Chhabra, Isabelle Codron, Christopher Farrington, Becky Flores, Tyler Gardner, Mayra Gutierrez, Cyprien Lanthermann, Olli W. Majoinen, Daniel Mortimer, Gail Schaefer, Nicholas Scott, Theo ten Brummelaar, Norman Vargas

JATIS, Vol. 9, Issue 02, 025006, (June 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.025006

KEYWORDS: Equipment, K band, Spatial resolution, Beam combiners, Cameras, Imaging systems, Prisms, Mirrors, Vacuum, Design and modelling

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Proceedings Article | 29 August 2022 Presentation

Presentation

CHARA MIRC-X and MYSTIC cophasing observations to enable efficient spectro-interferometry and over-resolved object imaging

Narsireddy Anugu, John Monnier, Jean-Baptiste Le Bouquin, Stefan Kraus, Benjamin Setterholm, Cyprien Lanthermann, Theo ten Brummelaar, Gail Schaefer, Jacob Ennis

Proceedings Volume 12183, 121830J (2022) https://doi.org/10.1117/12.2629661

KEYWORDS: Telescopes, Spectral resolution, Spatial resolution, Ranging, Observatories, K band, Vibration control, Interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Design of the new CHARA instrument SILMARIL: pushing for the sensitivity of a 3-beam combiner in the H- and K-bands

Cyprien Lanthermann, Theo ten Brummelaar, Douglas Gies, Gail Schaefer, Peter Tuthill, Marc-Antoine Martinod, Matthew Anderson, Edgar Ligon

Proceedings Volume 12183, 121830N (2022) https://doi.org/10.1117/12.2628268

KEYWORDS: Signal to noise ratio, K band, Stars, Sensors, Cameras, Optical filters, Spectral resolution, Interferometry, Device simulation

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

CHARA/SPICA: a six-telescope visible instrument for the CHARA Array

Denis Mourard, Philippe Berio, Cyril Pannetier, Nicolas Nardetto, Fatmé Allouche, Christophe Bailet, Julien Dejonghe, Daniel Lecron, Frédéric Morand, Pierre Geneslay, David Salabert, Estelle Jacqmart, Karine Perraut, Laurent Bourgès, Guillaume Mella, Theo ten Brummelaar, Gail Schaefer, Doug Gies, Stéphane Lagarde, Sylvain Rousseau, Alain Spang, Roxanne Ligi, Orlagh Creevey, Armando Domiciano de Souza, Markus Wittkowski, Sebastien Deheuvels, Narsireddy Anugu, Simon Albrecht

Proceedings Volume 12183, 1218308 (2022) https://doi.org/10.1117/12.2628881

KEYWORDS: Stars, Sensors, Interferometry, Single mode fibers, Spectrographs, Mirrors, Planets, Calibration, Visibility, Databases

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

MYSTIC: a high angular resolution K-band imager at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Laurent Jocou, Narsireddy Anugu, Theo ten Brummelaar, Gail Schaefer, Stefan Kraus, Cyprien Lanthermann, Jacob Ennis, Becky Flores, Nour Ibrahim, Tyler Gardner

Proceedings Volume 12183, 121830B (2022) https://doi.org/10.1117/12.2629437

KEYWORDS: Astronomical interferometry, Long baseline optical interferometry, Optical fibers, K band, Cameras, Prisms, Spatial resolution, Visibility, Optical systems, Optical filters

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Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

The CHARA Michelson Array Pathfinder

R. Ligon, T. ten Brummelaar, M. Anderson, G. Schaefer, N. Anugu, D. Gies, S. Golden, R. Koehler, C. Farrington, L. Sturmann, N. Turner, C. Woods, F. Reynaud, N. Scott, S. Ridgway

Proceedings Volume 12183, 121832N (2022) https://doi.org/10.1117/12.2629530

KEYWORDS: Optical fibers, Telescopes, Optical instrument design, Adaptive optics

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Ultrafast laser inscription of integrated optics two-telescope beam combiners for K-band interferometry at the CHARA array

Ettore Pedretti, Theo ten Brummelaar, Jacopo Siliprandi, David MacLachlan, Calum Ross, Tarun Sharma, Lucas Labadie, Kalaga Madhav, Abani Nayak, Aline Dinkelaker, Martin Roth, Nicholas Scott, Vincent Coudé du Foresto, Robert Thomson, Aurélien Benoît

Proceedings Volume 12183, 1218314 (2022) https://doi.org/10.1117/12.2629899

KEYWORDS: Waveguides, K band, Directional couplers, Interferometry, Ultrafast lasers, Integrated optics, Beam splitters, Spatial light modulators

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

SPICA-FT: the new fringe tracker of the CHARA array

Philippe Bério, Denis Mourard, Cyril Pannetier, Sylvain Rousseau, Fatmé Allouche, Julien Dejonghe, Daniel Lecron, Karine Perraut, Frédéric Cassaing, Christophe Bailet, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Theo ten Brummelaar

Proceedings Volume 12183, 1218309 (2022) https://doi.org/10.1117/12.2628897

KEYWORDS: Telescopes, Signal to noise ratio, Optical fibers, Spectrographs, Integrated optics, Stars, Phase shifts, Manufacturing, Visibility

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

A thesis to probe unique exoplanet regimes with micro-arcsecond astrometry and precision closure phases at CHARA and VLTI

Tyler Gardner, John Monnier, Jean-Baptiste Le Bouquin, Francis Fekel, Stefan Kraus, Narsireddy Anugu, Theo ten Brummelaar, Claire Davies, Jacob Ennis, Aaron Labdon, Cyprien Lanthermann, Gail Schaefer, Benjamin Setterholm, Adam Scovera, Fred Adams, Hayley Beltz, Jean-Philippe Berger, Douglas Gies, Keith J. C. Johnson, Pierre Kervella, Kaitlin Kratter, Isaac Malsky, Emily Rauscher, Johannes Sahlmann

Proceedings Volume 12183, 121830Z (2022) https://doi.org/10.1117/12.2630035

KEYWORDS: Planets, Stars, Calibration, Exoplanets, Data modeling, Interferometry, Binary data

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Recent technical and scientific highlights from the CHARA Array

Matthew Anderson, Narsireddy Anugu, Victor Castillo, Christopher Farrington, Steven Golden, Robert Klement, Rainer Köhler, Cyprien Lanthermann, E. Robert Ligon, Olli Majoinen, Harold McAlister, Stephen Ridgway, Nicholas Scott, Nils Turner, Norman Vargas, Larry Webster, Craig Woods, Douglas Gies, Theo ten Brummelaar, Gail Schaefer, Jeremy Jones

Proceedings Volume 12183, 1218303 (2022) https://doi.org/10.1117/12.2629048

KEYWORDS: Stars, Telescopes, Adaptive optics, Interferometry, K band, Planets, Spectroscopy, Exoplanets, Control systems, Spatial resolution

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

A versatile turbulence simulator for high-resolution imaging studies of astronomical targets

Caleb Abbott, Arturo Martinez, Stuart Jefferies, Theo ten Brummelaar, Fabien Baron

Proceedings Volume 11448, 114483T (2020) https://doi.org/10.1117/12.2561929

KEYWORDS: Atmospheric turbulence, Astronomical imaging, Astronomy, Wavefront sensors, Wave propagation interference, Atmospheric propagation, Beam propagation method, Phase retrieval, Turbulence, Optical instrument design

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Looking into the future of interferometry using free-space beam propagation

Arturo Martinez, Caleb Abbott, Stuart Jefferies, Theo ten Brummelaar, Fabien Baron

Proceedings Volume 11446, 114461B (2020) https://doi.org/10.1117/12.2561666

KEYWORDS: Atmospheric propagation, Beam propagation method, Interferometry, Telescopes, Optical simulations, Atmospheric optics, Wavefronts, Adaptive optics, Light wave propagation, Interferometers

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, F. Cassaing, F. Allouche, J. Monnier, N. Anugu, C. Bailet, P. Berio, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, N. Nardetto, F. Patru, K. Perraut, R. Petrov, S. Rousseau, P. Stee, J. Sturmann, L. Sturmann

Proceedings Volume 11446, 114460T (2020) https://doi.org/10.1117/12.2560625

KEYWORDS: Glasses, Stars, Fourier transforms, Optical tracking, Photons, Integrated optics, Coherence (optics), Atmospheric optics, Planets, Interferometry

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

K-band integrated optics beam combiners for CHARA fabricated by ultrafast laser inscription

Fraser Pike, Aurélien Benoît, David MacLachlan, Robert Thomson, Ettore Pedretti, Tarun Sharma, Lucas Labadie, Abani Nayak, Aline Dinkelaker, Kalaga Madhav, Martin Roth, Theo ten Brummelaar, Nicholas Scott, Vincent Coudé du Foresto

Proceedings Volume 11446, 114460K (2020) https://doi.org/10.1117/12.2561663

KEYWORDS: Integrated optics, K band, Ultrafast lasers, Astronomy, Astrophotonics, Waveguides, Information operations, Glasses, Optical filters, Atmospheric optics

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

MIRC-X polarinterferometry at CHARA

Benjamin Setterholm, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Aaron Labdon, Jacob Ennis, Stefan Kraus, Theo ten Brummelaar, John Monnier, Keith J. Johnson

Proceedings Volume 11446, 114460R (2020) https://doi.org/10.1117/12.2562407

KEYWORDS: Prisms, Stars, Spectral resolution, Polarimetry, Sensors, Light scattering, Beryllium

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

CHARA/MIRC-X: a high-sensitive six telescope interferometric imager concept, commissioning and early science

Jean-Baptiste Le Bouquin, John Monnier, Stefan Kraus, Benjamin Setterholm, Aaron Labdon, Cyprien Lanthermann, Jacob Ennis, Claire Davies, Theo ten Brummelaar, Gail Schaefer, Judit Sturmann, Matt Anderson, Tyler Gardner, Chris Farrington, Norm Vargas, Olli Majoinen, Narsireddy Anugu

Proceedings Volume 11446, 114460N (2020) https://doi.org/10.1117/12.2561579

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Recent highlights from The CHARA Array

Gail Schaefer, Theo ten Brummelaar, Douglas Gies, Matthew Anderson, Christopher Farrington, Jeremy Jones, Robert Klement, Judit Sturmann, Laszlo Sturmann, Nils Turner, Steven Golden, Olli Majoinen, Stephen Ridgway, Norm Vargas, Larry Webster, Craig Woods

Proceedings Volume 11446, 1144605 (2020) https://doi.org/10.1117/12.2562665

KEYWORDS: Optical arrays, Interferometers, Telescopes, Observatories, Image resolution, Binary data, Environmental sensing, Adaptive optics

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

A new frontier for J-band interferometry: dual-band NIR interferometry with MIRC-X

Theo ten Brummelaar, Gail Schaefer, Claire Davies, Jacob Ennis, Tyler Gardner, Cyprien Lanthermann, Laszlo Sturmann, Judit Sturmann, Aaron Labdon, Stefan Kraus, John Monnier, Jean-Baptiste Le Bouquin, Benjamin Setterholm, Narsireddy Anugu

Proceedings Volume 11446, 114460H (2020) https://doi.org/10.1117/12.2561371

KEYWORDS: Interferometry, Near infrared, Birefringence, Atmospheric corrections, Atmospheric modeling, Telescopes, Instrument modeling

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Proceedings Article | 13 December 2020 Paper

Paper

CHARA array adaptive optics: complex operational software and performance

Cyril Petit, Michel Tallon, Caroline Lim, Philippe Berio, Chris Farrington, Norm Vargas, Olli Majoinen, Gail Schaefer, Stefan Kraus, Narsireddy Anugu, Theo ten Brummelaar, Matthew Anderson, Judit Sturmann, Laszlo Sturmann, Nils Turner, Jean-Baptiste Le Bouquin, Michael Ireland, John Monnier, Denis Mourard, Douglas Gies, Stephen Ridgway

Proceedings Volume 11446, 1144622 (2020) https://doi.org/10.1117/12.2561560

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Optical arrays, Cameras, Deformable mirrors, Actuators, Space telescopes, Interferometers, Binary data

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

The CHARA array adaptive optics program

Theo ten Brummelaar, Judit Sturmann, Laszlo Sturmann, Matthew Anderson, Nils Turner, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Douglas Gies, Jean-Baptiste Le Bouquin

Proceedings Volume 10703, 1070304 (2018) https://doi.org/10.1117/12.2312311

KEYWORDS: Adaptive optics, Telescopes, Interferometers, Interferometry, Mirrors, Actuators, Visible radiation, Imaging systems, Astronomy, Spatial resolution

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

MIRC-X/CHARA: sensitivity improvements with an ultra-low noise SAPHIRA detector

Narsireddy Anugu, John Monnier, Stefan Kraus, Jacob Ennis, Benjamin Setterholm, Jean-Baptiste Le Bouquin, Cyprien Lanthermann, Claire Davies, Theo ten Brummelaar, Mariam Haidar, Veronika Dubravec, Scott Peters

Proceedings Volume 10701, 1070124 (2018) https://doi.org/10.1117/12.2313036

KEYWORDS: Cameras, Signal to noise ratio, Sensors, Data acquisition, Polarization, Optical fibers, Visibility, Imaging systems, Photons, Telescopes

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

SPICA, a new 6T visible beam combiner for CHARA: science, design and interfaces

Denis Mourard, Philippe Berio, Jean-Michel Clausse, Marc-Antoine Martinod, Nicolas Nardetto, Karine Perraut, Christophe Bailet, Yves Bresson, Frédéric Cassaing, Julien Dejonghe, Stéphane Lagarde, Vincent Michau, Cyril Petit, Michel Tallon, Isabelle Tallon-Bosc, Theo ten Brummelaar

Proceedings Volume 10701, 1070120 (2018) https://doi.org/10.1117/12.2311869

KEYWORDS: Stars, Adaptive optics, Sensors, Interferometry, Optical fibers, Telescopes, Single mode fibers, Integrated optics, Visible radiation, Planets

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Proceedings Article | 9 July 2018 Paper

Paper

Planet formation imager: project update

John Monnier, Michael Ireland, Stefan Kraus, Amy Bonsor, Fabien Baron, Jean-Philippe Berger, Tabetha Boyajian, Andrea Chiavassa, David Ciardi, Michelle Creech-Eakman, Willem-Jan de Wit, Ruobing Dong, Catherine Espaillat, Alexandre Gallenne, Poshak Gandhi, Jean-Francois Gonzalez, Chris Haniff, Sebastian Hoenig, John Ilee, Andrea Isella, Eric Jensen, Attila Juhasz, Stephen Kane, Makoto Kishimoto, Wilhelm Kley, Quentin Kral, Kaitlin Kratter, Lucas Labadie, Sylvestre Lacour, Greg Laughlin, Jean-Baptiste Le Bouquin, Ernest Michael, Farzana Meru, Rafael Millan-Gabet, Florentin Millour, Stefano Minardi, Alessandro Morbidelli, Chris Mordasini, Andreas Morlok, Dave Mozurkewich, Richard Nelson, Rene Oudmaijer, Chris Packham, Claudia Paladini, Olja Panic, Romain Petrov, Benjamin Pope, Joerg-Uwe Pott, Luis Henry Quiroga-Nunez, Cristina Ramos Almeida, Sean Raymond, Zsolt Regaly, Mark Reynolds, Stephen Ridgway, Stephen Rinehart, Michael Smith, Keivan Stassun, Jean Surdej, Neal Turner, Peter Tuthill, Gerard van Belle, Gautum Vasisht, Gerd Weigelt, Edward Wishnow, Sebastian Wolf, Ming Zhao, Zhaohuan Zhu, Matthias Schreiber, Gaspard Duchêne, Amelia Bayo, Johan Olofsson, Theo ten Brummelaar, Konrad Tristram, Markus Wittkowski, John Young, Alexander Wallace, Denis Defrère, Almudena Alonso-Herrero, Sebastian Zúñiga-Fernández

Proceedings Volume 10701, 1070118 (2018) https://doi.org/10.1117/12.2312683

KEYWORDS: Planets, Telescopes, Space telescopes, Exoplanets, Stars, Mid-IR, Interferometry, Signal to noise ratio, Interferometers, Heterodyning

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Proceedings Article | 9 July 2018 Paper

Paper

MYSTIC: Michigan Young STar Imager at CHARA

Jean-Baptiste Le Bouquin, Stefan Kraus, John Monnier, Narsireddy Anugu, Benjamin Setterholm, Jacob Ennis, Cyprien Lanthermann, Theo ten Brummelaar, Laurent Jocou

Proceedings Volume 10701, 1070122 (2018) https://doi.org/10.1117/12.2312762

KEYWORDS: Optical fibers, Cameras, Spectrographs, K band, Integrated optics, Stars, Imaging systems, Spectral resolution, Optical interferometry, Coherent beam combination

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

The MIRC-X 6-telescope imager: key science drivers, instrument design and operation

Stefan Kraus, John Monnier, Narsireddy Anugu, Jean-Baptiste Le Bouquin, Jacob Ennis, Benjamin Setterholm, Cyprien Lanthermann, Claire Davies, Theo ten Brummelaar, Aaron Labdon

Proceedings Volume 10701, 1070123 (2018) https://doi.org/10.1117/12.2311706

KEYWORDS: Sensors, Cameras, Visibility, Stars, Imaging systems, Polarization, Interferometry, Optical fibers, Signal to noise ratio, Calibration

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Recent technical and scientific highlights from the CHARA array

Douglas Gies, Theo ten Brummelaar, Matthew Anderson, Christopher Farrington, Steven Golden, Jeremy Jones, Robert Klement, Olli Majoinen, Gail Schaefer, Judit Sturmann, Laszlo Sturmann, Nils Turner, Norman Vargas, Larry Webster, Craig Woods, Stephen Ridgway

Proceedings Volume 10701, 1070102 (2018) https://doi.org/10.1117/12.2311755

KEYWORDS: Stars, Adaptive optics, Telescopes, Interferometry, Planets, Astronomy, Data archive systems, Observatories, K band

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Proceedings Article | 4 August 2016 Paper

Paper

Status of the Planet Formation Imager (PFI) concept

Michael Ireland, Andrea Isella, Stefano Minardi, David Mozurkewich, Theo ten Brummelaar, John Monnier, Stefan Kraus, Romain Petrov, John Young, Ernest Michael, Gautam Vasisht, Gerard van Belle, Julien Woillez, Stephen Rinehart

Proceedings Volume 9907, 99071L (2016) https://doi.org/10.1117/12.2233926

KEYWORDS: Planets, Imaging systems, Telescopes, Signal to noise ratio, Heterodyning, Optical instrument design, Space telescopes, Stars, Optical spheres, Adaptive optics

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Proceedings Article | 4 August 2016 Paper

Paper

An update on the CHARA array

T. ten Brummelaar, D. Gies, H. McAlister, S. Ridgway, J. Sturmann, L. Sturmann, G. Schaefer, N. Turner, C. Farrington, N. Scott, J. Monnier, M. Ireland

Proceedings Volume 9907, 990703 (2016) https://doi.org/10.1117/12.2232125

KEYWORDS: Adaptive optics, Telescopes, Interferometry, Observatories, Interferometers, Astronomy, Data archive systems, Visible radiation, Mirrors, Spectral resolution

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Proceedings Article | 4 August 2016 Paper

Paper

Architecture design study and technology road map for the Planet Formation Imager (PFI)

Stefan Kraus, Fabien Baron, David Mozurkewich, Romain Petrov, Stephen Rinehart, Theo ten Brummelaar, Ed Wishnow, Ruobing Dong, Ernest Michael, Zhaohuan Zhu, John Monnier, Michael Ireland, Michelle Creech-Eakman, Andrea Isella, Antoine Merand, Stefano Minardi, Gautam Vasisht, John Young

Proceedings Volume 9907, 99071O (2016) https://doi.org/10.1117/12.2233311

KEYWORDS: Telescopes, Planets, Imaging systems, Mid-IR, Heterodyning, Stars, Signal to noise ratio, Image restoration, L band, Visibility

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The Planet Formation Imager (PFI) Project has formed a Technical Working Group (TWG) to explore possible facility architectures to meet the primary PFI science goal of imaging planet formation in situ in nearby starforming regions. The goals of being sensitive to dust emission on solar system scales and resolving the Hill-sphere around forming giant planets can best be accomplished through sub-milliarcsecond imaging in the thermal infrared. Exploiting the 8-13 micron atmospheric window, a ground-based long-baseline interferometer with approximately 20 apertures including 10km baselines will have the necessary resolution to image structure down 0.1 milliarcseconds (0.014 AU) for T Tauri disks in Taurus. Even with large telescopes, this array will not have the sensitivity to directly track fringes in the mid-infrared for our prime targets and a fringe tracking system will be necessary in the near-infrared. While a heterodyne architecture using modern mid-IR laser comb technology remains a competitive option (especially for the intriguing 24 and 40μm atmospheric windows), the prioritization of 3-5μm observations of CO/H2O vibrotational levels by the PFI-Science Working Group (SWG) pushes the TWG to require vacuum pipe beam transport with potentially cooled optics. We present here a preliminary study of simulated L- and N-band PFI observations of a realistic 4-planet disk simulation, finding 21x2.5m PFI can easily detect the accreting protoplanets in both L and N-band but can see non-accreting planets only in L band. We also find that even an ambitious PFI will lack sufficient surface brightness sensitivity to image details of the fainter emission from dust structures beyond 5 AU, unless directly illuminated or heated by local energy sources. That said, the utility of PFI at N-band is highly dependent on the stage of planet formation in the disk and we require additional systematic studies in conjunction with the PFI-SWG to better understand the science capabilities of PFI, including the potential to resolve protoplanetary disks in emission lines to measure planet masses using position-velocity diagrams. We advocate for a specific technology road map in order to reduce the current cost driver (telescopes) and to validate high accuracy fringe tracking and high dynamic range imaging at L, M band. In conclusion, no technology show-stoppers have been identified for PFI to date, however there is high potential for breakthroughs in medium-aperture (4-m class) telescopes architecture that could reduce the cost of PFI by a factor of 2 or more.

Proceedings Article | 4 August 2016 Paper

Paper

Planet Formation Imager (PFI): science vision and key requirements

John Monnier, Michael Ireland, Gaspard Duchêne, Catherine Espaillat, Sebastian Hönig, Attila Juhasz, Johan Olofsson, Claudia Paladini, Keivan Stassun, Neal Turner, Gautam Vasisht, Almudena Alonso Herrero, Amy Bonsor, Phil Armitage, Amelia Bayo, Clement Baruteau, Jean-Philippe Berger, Bertram Bitsch, Tabetha Boyajian, Andrea Chiavassa, David Ciardi, Willem-Jan de Wit, Alexandre Gallenne, Poshak Gandhi, John Ilee, Eric L. Jensen, Stephen Kane, Makoto Kishimoto, Wilhelm Kley, Quentin Kral, Kaitlin Kratter, Lucas Labadie, Greg Laughlin, Frederic Masset, Farzana Meru, Rafael Millan-Gabet, Florentin Millour, Alessandro Morbidelli, Chris Mordasini, Andreas Morlok, Richard Nelson, Rene Oudmaijer, Sijme-Jan Paardekooper, Chris Packham, Olja Panic, Arnaud Pierens, Christophe Pinte, Benjamin Pope, Jörg-Uwe Pott, Luis Henry Quiroga-Nuñez, Stefan Kraus, Myriam Benisty, Cristina Ramos Almeida, Sean Raymond, Zsolt Regaly, Mark Reynolds, Giovanni Rosotti, Michael Smith, Jean Surdej, Theo ten Brummelaar, Konrad R. Tristram, Gerd Weigelt, Markus Wittkowski, Sebastian Wolf, Ming Zhao, Zhaohuan Zhu, David Buscher, Chris Haniff, Sylvestre Lacour, Romain Petrov, Steve Ridgway, Peter Tuthill, Gerard van Belle, Tim Harries, Matthew Bate, Jean-François Gonzalez, Alexis Matter, Joshua Pepper

Proceedings Volume 9907, 99071K (2016) https://doi.org/10.1117/12.2231067

KEYWORDS: Planets, Imaging systems, Exoplanets, Planetary systems, Astrophysics, Stars, Astronomy, Theoretical astronomy, Observatories, Physics

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Proceedings Article | 26 July 2016 Paper

Paper

First year report of the Optical Interferometry DataBase

Xavier Haubois, Guillaume Mella, Laurent Bourgès, Gilles Duvert, J. Le Bouquin, Denis Mourard, Theo ten Brummelaar, Chris Farrington, Myriam Benisty

Proceedings Volume 9907, 99073V (2016) https://doi.org/10.1117/12.2233525

KEYWORDS: Databases, Observatories, Optical interferometry, Interferometry, Interferometers, Optical interferometry, Calibration, Data modeling, Aluminium phosphide, Visibility, Astronomy

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Proceedings Article | 26 July 2016 Paper

Paper

ALOHA/CHARA at 1.55 µm: sensitivity improvement and on-sky ability to detect astronomical sources in H band

P. Darré, L. Grossard, L. Delage, F. Reynaud, N. Scott, J. Sturmann, T. Ten Brummelaar

Proceedings Volume 9907, 990724 (2016) https://doi.org/10.1117/12.2232315

KEYWORDS: Interferometers, Interferometry, Astronomy, Prototyping, Signal to noise ratio, Infrared radiation, Modulators, Signal detection, Frequency conversion, Nonlinear dynamics

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Proceedings Article | 7 August 2014 Paper

Paper

CHARA array adaptive optics II: non-common-path correction and downstream optics

Theo ten Brummelaar, Xiao Che, Harold McAlister, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Nils Turner, Peter Tuthill

Proceedings Volume 9148, 91484Q (2014) https://doi.org/10.1117/12.2056662

KEYWORDS: Adaptive optics, Telescopes, Stars, Optical arrays, Optical calibration, Wavefronts, Deformable mirrors, Interferometers, Infrared telescopes, Wavefront sensors

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Proceedings Article | 24 July 2014 Paper

Paper

Planet formation imager (PFI): introduction and technical considerations

John Monnier, J.-P. Berger, Stefan Kraus, Michael Ireland, Lucas Labadie, Sylvestre Lacour, Jörg-Uwe Pott, Stephen Ridgway, Jean Surdej, Theo ten Brummelaar, Peter Tuthill, Gerard van Belle, David Buscher, Christopher Haniff, Romain Petrov, Herve Le Coroller

Proceedings Volume 9146, 914610 (2014) https://doi.org/10.1117/12.2057262

KEYWORDS: Planets, Telescopes, Space telescopes, Stars, Imaging systems, Spatial resolution, Interferometry, Mid-IR, Interferometers, Exoplanets

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Proceedings Article | 24 July 2014 Paper

Paper

MWC 314: binary results from optical interferometry compared with spectroscopy and photometry

Noel Richardson, Anthony F. J. Moffat, Raphael Maltais-Tariant, Herbert Pablo, Douglas Gies, Nicole St-Louis, Gail Schaefer, Anatoly Miroshnichenko, Chris Farrington, Emily Aldoretta, Etienne Artigau, Tabetha Boyajian, Katie Gordon, P. Goldfinger, Jeremy Jones, Rachel Matson, Harold McAlister, David O'Brien, Deepak Raghavan, Tahina Ramiaramanantsoa, Stephen Ridgway, Nic Scott, Judit Sturmann, Laszlo Sturmann, Theo ten Brummelaar, Joshua Thomas, Nils Turner, Norm Vargas, Sergey Zharikov

Proceedings Volume 9146, 91460G (2014) https://doi.org/10.1117/12.2055364

KEYWORDS: Stars, Spectroscopy, Interferometry, Photometry, Absorption, Telescopes, Calibration, Spectrophotometry, Binary data, Observatories

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Proceedings Article | 24 July 2014 Paper

Paper

Making the CHARA Array, Part I: founding CHARA, the audacity of hope

Harold McAlister, Theo ten Brummelaar, Stephen Ridgway

Proceedings Volume 9146, 91460D (2014) https://doi.org/10.1117/12.2055587

KEYWORDS: Telescopes, Interferometers, Interferometry, Astronomy, Stars, Observatories, Spatial resolution, Speckle, Cameras, Space telescopes

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Proceedings Article | 24 July 2014 Paper

Paper

JouFLU: upgrades to the fiber linked unit for optical recombination (FLUOR) interferometric beam combiner.

N. Scott, R. Millan-Gabet, E. Lhomé, T. ten Brummelaar, V. Coudé du Foresto, J. Sturmann, L. Sturmann

Proceedings Volume 9146, 91461A (2014) https://doi.org/10.1117/12.2057129

KEYWORDS: Cameras, Interferometry, Fourier transforms, Mirrors, Visibility, Optical alignment, Telescopes, Raster graphics, Stars, Polarization

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Proceedings Article | 24 July 2014 Paper

Paper

Making the CHARA Array, Part II: project management: 15 years on thin ice

Stephen Ridgway, Theo ten Brummelaar, Harold McAlister

Proceedings Volume 9146, 91460E (2014) https://doi.org/10.1117/12.2056748

KEYWORDS: Telescopes, Interferometry, Mirrors, Space telescopes, Astronomy, Interferometers, Prototyping, Telescope design, Observatories, Optical instrument design

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Proceedings Article | 24 July 2014 Paper

Paper

The science case for the Planet Formation Imager (PFI)

Stefan Kraus, John Monnier, Matthew Bate, Tim Harries, Jean-Philippe Berger, Mike Ireland, Lucas Labadie, Sylvestre Lacour, Steve Ridgway, Jean Surdej, Theo ten Brummelaar, Peter Tuthill, Gerard van Belle, Ruobing Dong, Zhaohuan Zhu, Barbara Whitney, David Buscher, Chris Haniff, Romain Petrov

Proceedings Volume 9146, 914611 (2014) https://doi.org/10.1117/12.2055544

KEYWORDS: Planets, Stars, Planetary systems, Mid-IR, Interferometry, Exoplanets, Computer simulations, Imaging systems, Radiative transfer, Physics

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Proceedings Article | 24 July 2014 Paper

Paper

A low-noise HAWAII detector system and new cold optics for the CLASSIC/CLIMB beam combiner instrument of the CHARA array

Udo Beckmann, Claus Connot, Matthias Heininger, Karl-Heinz Hofmann, Eddy Nußbaum, Dieter Schertl, Theo ten Brummelaar, Gerd Weigelt, Nils Turner, Walter Solscheid

Proceedings Volume 9146, 91461W (2014) https://doi.org/10.1117/12.2055850

KEYWORDS: Sensors, Electronics, Staring arrays, Analog electronics, Digital filtering, Prisms, Signal processing, Radio astronomy, Signal detection, Electrons

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Proceedings Article | 24 July 2014 Paper

Paper

The CHARA array adaptive optics I: common-path optical and mechanical design, and preliminary on-sky results

Xiao Che, Laszlo Sturmann, John Monnier, Theo ten Brummelaar, Judit Sturmann, Stephen Ridgway, Michael Ireland, Nils Turner, Harold McAlister

Proceedings Volume 9148, 914830 (2014) https://doi.org/10.1117/12.2055693

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Cameras, Wavefront sensors, Beam splitters, Collimation, Electron multiplying charge coupled devices, Optical arrays, Near infrared

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Proceedings Article | 24 July 2014 Paper

Paper

Making the CHARA Array, Part III: engineering decisions. to build or not to build

Harold McAlister, Stephen Ridgway, Theo ten Brummelaar

Proceedings Volume 9146, 91460F (2014) https://doi.org/10.1117/12.2056653

KEYWORDS: Control systems, Interferometers, Telescopes, Software development, Systems modeling, Optical mounts, Actuators, Observatories, Interferometry, Sensors

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Proceedings Article | 20 February 2014 Paper

Paper

Sum frequency generation process for a new astronomical instrument

R. Baudoin, J. Gomes, L. Delage, L. Grossard, F. Reynaud, T. Ten Brummelar, N. Scott, J. Sturmann

Proceedings Volume 8964, 89641G (2014) https://doi.org/10.1117/12.2039083

KEYWORDS: Interferometers, Astronomy, Telescopes, Interferometry, Photon counting, Upconversion, Sum-frequency generation, Polarization, Nonlinear crystals, Optical components

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Proceedings Article | 13 September 2012 Paper

Paper

Adaptive optics for the CHARA array

Judit Sturmann, Nils Turner, John Monnier, Stephen Ridgway, Harold McAlister, Xiao Che, Michael Ireland, P. Tuthill, Laszlo Sturmann, Theo ten Brummelaar

Proceedings Volume 8447, 84473I (2012) https://doi.org/10.1117/12.927031

KEYWORDS: Adaptive optics, Telescopes, Stars, Cameras, Mirrors, Sensors, Interferometers, Wavefront sensors, Deformable mirrors, Astronomy

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Proceedings Article | 12 September 2012 Paper

Paper

Imaging rapid rotators with the PAVO beam combiner at CHARA

Yitping Kok, Tim White, Theo ten Brummelaar, Harold McAlister, Nils Turner, Christopher Farrington, P. Goldfinger, Daniel Huber, Michael Ireland, Vicente Maestro, Peter Tuthill, Gail Schaefer

Proceedings Volume 8445, 84450G (2012) https://doi.org/10.1117/12.926881

KEYWORDS: Calibration, Stars, Visibility, Spatial frequencies, Interferometry, Telescopes, Spatial resolution, Data modeling, Astronomy, Interferometers

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Proceedings Article | 12 September 2012 Paper

Paper

Five years of imaging at CHARA with MIRC

T. ten Brummelaar, E. Pedretti, N. Thureau, M. Zhao, F. Baron, X. Che, John Monnier

Proceedings Volume 8445, 84450Y (2012) https://doi.org/10.1117/12.926433

KEYWORDS: Stars, Infrared imaging, Infrared radiation, Telescopes, Interferometry, Calibration, Optical spheres, Infrared astronomy, Visible radiation, Synthetic apertures

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Proceedings Article | 12 September 2012 Paper

Paper

Performance, results, and prospects of the visible spectrograph VEGA on CHARA

Mounir Challouf, Jérôme Gerakis, Laurent Bourges, S. Ridgway, Karine Perraut, T. ten Brummelaar, Isabelle Tallon-Bosc, C. Farrington, Nicolas Nardetto, Jean-Michel Clausse, Philippe Bério, Roxanne Ligi, N. Turner, J. Sturmann, H. McAlister, L. Sturmann, Denis Mourard, P. Goldfinger

Proceedings Volume 8445, 84450K (2012) https://doi.org/10.1117/12.925223

KEYWORDS: Calibration, Sensors, Visibility, Stars, Signal to noise ratio, Visible radiation, Spectral resolution, Error analysis, Spectrographs, Databases

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Proceedings Article | 12 September 2012 Paper

Paper

Recent technical and scientific highlights from the CHARA Array

Nils Turner, Theo ten Brummelaar, Larry Webster, Stephen Ridgway, Tabetha Boyajian, Christopher Farrington, Laszlo Sturmann, Harold McAlister, Douglas Gies, Gail Schaefer, P. Goldfinger, Judit Sturmann

Proceedings Volume 8445, 84450H (2012) https://doi.org/10.1117/12.926452

KEYWORDS: Stars, Interferometry, Telescopes, Imaging systems, Planets, Visible radiation, Visibility, Astronomy, Spectral resolution, K band

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Proceedings Article | 12 September 2012 Paper

Paper

Data analysis for the CHARA Array CLIMB beam combiner

Chris Farrington, Laszlo Sturmann, Harold McAlister, P. Goldfinger, Theo ten Brummelaar, Judit Sturmann, Gail Schaefer, Nils Turner, Brian Kloppenborg

Proceedings Volume 8445, 84453C (2012) https://doi.org/10.1117/12.925023

KEYWORDS: Visibility, Interference (communication), Telescopes, Fringe analysis, Data analysis, Mirrors, Signal to noise ratio, Interferometry, Calibration, Camera shutters

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Proceedings Article | 12 September 2012 Paper

Paper

Studying hot exozodiacal dust with near-infrared interferometry

Steve Ertel, Denis Defrère, Vincent Coudé du Foresto, Jean-Baptiste Le Bouquin, Jean-Charles Augereau, Olivier Absil, Benjamin Mollier, Theo ten Brummelaar, Emmanuel Di Folco

Proceedings Volume 8445, 84450X (2012) https://doi.org/10.1117/12.926642

KEYWORDS: Stars, Visibility, Interferometry, Data modeling, Error analysis, Statistical analysis, Infrared radiation, K band, Planetary systems, Calibration

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Proceedings Article | 12 September 2012 Paper

Paper

Tracking faint fringes with the CHARA-Michigan Phasetracker (CHAMP)

M. Anderson, X. Che, John Monnier, R. Millan-Gabet, E. Pedretti, T. ten Brummelaar, S. Kraus, N. Calvet, F. Baron

Proceedings Volume 8445, 84451I (2012) https://doi.org/10.1117/12.926399

KEYWORDS: Ferroelectric materials, Coating, Visibility, Metrology, Signal to noise ratio, K band, Calibration, Astronomy, Interferometry, Infrared radiation

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Proceedings Article | 12 September 2012 Paper

Paper

JouFLU: an upgraded FLUOR beam combiner at the CHARA Array

F. Chapron, T. Buey, J. Reess, B. Mollier, L. Sturmann, E. Lhomé, V. Coudé du Foresto, A. Sevin, T. ten Brummelaar, N. Scott, J. Sturmann

Proceedings Volume 8445, 84452I (2012) https://doi.org/10.1117/12.925905

KEYWORDS: Cameras, Telescopes, Fourier transforms, Infrared radiation, Mirrors, K band, Optical alignment, Visibility, Infrared telescopes, Interferometry

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Proceedings Article | 1 November 2010 Paper

Paper

Adaptive optics for the CHARA array II

Alexander Goncharov, Nils Turner, Peter Tuthill, Laszlo Sturmann, Judit Sturmann, Harold McAlister, Chris Dainty, Nicholas Devaney, Theo ten Brummelaar, John Monnier, Stephen Ridgway, David Mozurkewich, Michael Ireland, Derek Coburn

Proceedings Volume 7734, 77340B (2010) https://doi.org/10.1117/12.857685

KEYWORDS: Adaptive optics, Telescopes, Atmospheric optics, Wavefronts, Visibility, Interferometry, Space telescopes, Atmospheric propagation, Monte Carlo methods, Astronomy

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Proceedings Article | 22 July 2010 Paper

Paper

MIRC closure phase studies for high precision measurements

John Monnier, Ettore Pedretti, Ming Zhao, Xiao Che, Nathalie Thureau, Theo ten Brummelaar

Proceedings Volume 7734, 77341A (2010) https://doi.org/10.1117/12.857538

KEYWORDS: Calibration, Jupiter, Planets, Binary data, Stars, Data modeling, Phase measurement, Signal to noise ratio, Polarizers, Interferometers

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Proceedings Article | 22 July 2010 Paper

Paper

Performances and first science results with the VEGA/CHARA visible instrument

K. Perraut, A. Spang, N. Nardetto, N. Turner, O. Delaa, T. ten Brummelaar, M. Tallon, J. Clausse, P. Goldfinger, J. Sturmann, C. Farrington, I. Tallon-Bosc, Ph. Stee, D. Bonneau, Ph. Bério, H. McAlister, O. Chesneau, L. Sturmann, D. Mourard

Proceedings Volume 7734, 77340D (2010) https://doi.org/10.1117/12.856100

KEYWORDS: Stars, Visibility, Interferometry, Spectral resolution, Spectrographs, Telescopes, Visible radiation, Calibration, Signal to noise ratio, Spatial resolution

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Proceedings Article | 22 July 2010 Paper

Paper

MI-6: Michigan interferometry with six telescopes

N. Thureau, P. Irwin, R. Millan-Gabet, E. Pedretti, M. Zhao, X. Che, John Monnier, F. Baron, D. Berger, T. Eckhause, T. ten Brummelaar, M. Anderson, S. Kraus

Proceedings Volume 7734, 77340G (2010) https://doi.org/10.1117/12.858286

KEYWORDS: Telescopes, Calibration, Stars, Amplifiers, Interferometry, Visibility, Imaging systems, Infrared telescopes, Infrared imaging, Infrared radiation

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Proceedings Article | 22 July 2010 Paper

Paper

Modified telescope alignment procedure for improving the beam quality of the CHARA Telescopes

Judit Sturmann, Laszlo Sturmann, Harold McAlister, Theo ten Brummelaar

Proceedings Volume 7734, 773445 (2010) https://doi.org/10.1117/12.857883

KEYWORDS: Telescopes, Wavefronts, Monochromatic aberrations, Mirrors, Visibility, Alignment procedures, Stars, Optical alignment, Sensors, Wavefront sensors

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Proceedings Article | 22 July 2010 Paper

Paper

An update on the CHARA Array

Harold McAlister, Laszlo Sturmann, Christopher Farrington, Theo ten Brummelaar, Gail Schaefer, Nils Turner, Judit Sturmann, Douglas Gies, Stephen Ridgway, P. Goldfinger

Proceedings Volume 7734, 773403 (2010) https://doi.org/10.1117/12.856028

KEYWORDS: Stars, Telescopes, Control systems, Visible radiation, Observatories, Imaging systems, Interferometry, K band, Phase measurement, Astronomy

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Proceedings Article | 22 July 2010 Paper

Paper

Measuring the effective wavelength of CHARA classic

Theo ten Brummelaar, Emily Bowsher, Harold McAlister

Proceedings Volume 7734, 77342W (2010) https://doi.org/10.1117/12.856141

KEYWORDS: Mirrors, Stars, Telescopes, Error analysis, Fringe analysis, Diamond, K band, Target detection, Data modeling, Systems modeling

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Proceedings Article | 22 July 2010 Paper

Paper

Instrumental developments for the Sydney University Stellar Interferometer

Theo ten Brummelaar, Peter Tuthill, J. Gordon Robertson, John Davis, Andrew Jacob, Yitping Kok, Michael Ireland, William Tango

Proceedings Volume 7734, 773405 (2010) https://doi.org/10.1117/12.856557

KEYWORDS: Stars, Sensors, Interferometers, Mirrors, Charge-coupled devices, Telescopes, Visibility, CCD image sensors, Control systems, Astronomy

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Proceedings Article | 22 July 2010 Paper

Paper

Dual three-way infrared beam combiner at the CHARA Array

Judit Sturmann, Laszlo Sturmann, Harold McAlister, Theo ten Brummelaar

Proceedings Volume 7734, 77343A (2010) https://doi.org/10.1117/12.857517

KEYWORDS: Mirrors, Telescopes, Cameras, Infrared radiation, Detector arrays, Infrared cameras, Infrared detectors, Infrared imaging, K band, Sensors

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Proceedings Article | 28 July 2008 Paper

Paper

Adaptive optics for the CHARA Array

Harold McAlister, Stephen Ridgway, Laszlo Sturmann, Nils Turner, Theo ten Brummelaar, Antoine Merand, Judit Sturmann

Proceedings Volume 7013, 70133B (2008) https://doi.org/10.1117/12.790230

KEYWORDS: Adaptive optics, Visibility, Atmospheric optics, Telescopes, Wavefronts, Sensors, Refraction, K band, Spatial filters, Wavefront sensors

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Proceedings Article | 28 July 2008 Paper

Paper

The gas-dust transition region in young stellar objects: a sub-milli-arcsecond view through the eyes of CHARA

A. Tannirkulam, J. Monnier, T. Harries, R. Millan-Gabet, Z. Zhu, E. Pedretti, T. ten Brummelaar

Proceedings Volume 7013, 70130U (2008) https://doi.org/10.1117/12.788512

KEYWORDS: Near infrared, Stars, Visibility, Data modeling, K band, Interferometry, Calibration, Interferometers, Infrared telescopes, Infrared radiation

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Proceedings Article | 28 July 2008 Paper

Paper

Exoplanet studies with CHARA-MIRC

Ettore Pedretti, Nathalie Thureau, John Monnier, Theo ten Brummelaar, Ming Zhao

Proceedings Volume 7013, 70131K (2008) https://doi.org/10.1117/12.789698

KEYWORDS: Jupiter, Telescopes, Signal detection, Stars, Planets, Calibration, Atmospheric modeling, Exoplanets, Interferometers, Phase shifts

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Proceedings Article | 28 July 2008 Paper

Paper

Sensitive visible interferometry with PAVO

Nils Turner, Harold McAlister, Michael Ireland, Peter Tuthill, Laszlo Sturmann, Judit Sturmann, Gail Schaefer, Theo ten Brummelaar, Antoine Mérand

Proceedings Volume 7013, 701324 (2008) https://doi.org/10.1117/12.788386

KEYWORDS: Signal to noise ratio, Prisms, Visibility, Spatial filters, Sensors, Stars, Interferometry, Interferometers, Fourier transforms, Astronomy

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Proceedings Article | 28 July 2008 Paper

Paper

An update on the CHARA array

Douglas Gies, Judit Sturmann, Antoine Mérand, Robert Thompson, Laszlo Sturmann, P.J. Goldfinger, Theo ten Brummelaar, Christopher Farrington, Steve Ridgway, Nils Turner, Harold McAlister

Proceedings Volume 7013, 701308 (2008) https://doi.org/10.1117/12.788008

KEYWORDS: Stars, Telescopes, Imaging systems, Visible radiation, Interferometry, Mirrors, Astronomy, Spectral resolution, Sensors, Visibility

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Proceedings Article | 28 July 2008 Paper

Paper

The SUSI instrument: new science and technology

Michael Ireland, Stephen Owens, Peter Tuthill, Andrew Jacob, William Tango, Julian North, J. Gordon Robertson, Theo ten Brummelaar, John Davis

Proceedings Volume 7013, 701304 (2008) https://doi.org/10.1117/12.787707

KEYWORDS: Stars, Spatial filters, Mirrors, Interferometry, Physics, Interferometers, Telescopes, Sensors, Beam splitters, Systems modeling

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Proceedings Article | 28 July 2008 Paper

Paper

VEGA: a new visible spectrograph and polarimeter on the CHARA Array

M. Tallon, A. Marcotto, I. Tallon-Bosc, H. McAlister, A. Blazit, E. Thiebaut, J. M. Clausse, D. Bonneau, Y. Hughes, T. ten Brummelaar, A. Domiciano de Souza, L. Sturmann, F. Hénault, A. Roussel, G. Merlin, J. Sturmann, Ph. Stee, C. Farrington, R. Foy, D. Mattei, P. Kervella, P. J. Goldfinger, N. Turner, K. Perraut, D. Mourard, O. Chesneau

Proceedings Volume 7013, 701323 (2008) https://doi.org/10.1117/12.787505

KEYWORDS: Spectrographs, Visible radiation, Spectral resolution, Sensors, Polarimetry, Stars, Signal to noise ratio, Interferometry, Mirrors, Telescopes

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Proceedings Article | 28 July 2008 Paper

Paper

CHARA Michigan phase-tracker (CHAMP): a preliminary performance report

Jennifer Blum, Nathalie Thureau, Matthew Anderson, John Monnier, Ettore Pedretti, Rafael Millan-Gabet, Theo ten Brummelaar, David Berger, Timothy Blasius

Proceedings Volume 7013, 701319 (2008) https://doi.org/10.1117/12.790168

KEYWORDS: Staring arrays, Beam splitters, K band, Lens design, Mirrors, Lenses, Servomechanisms, Optical fibers, Phase shift keying, Optical tracking

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Proceedings Article | 15 July 2008 Paper

Paper

Imaging the surface of Altair and a MIRC update

N. Thureau, J. Sturmann, H. McAlister, P. Muirhead, D. Berger, E. Pedretti, S. Ridgway, J.-P. Berger, J. Blum, John Monnier, M. Ireland, L. Sturmann, R. Millan-Gabet, N. Turner, M. Zhao, A. Tannirkulam, T. ten Brummelaar, G. Van Belle

Proceedings Volume 7013, 701302 (2008) https://doi.org/10.1117/12.789754

KEYWORDS: Calibration, Telescopes, Stars, Visibility, Binary data, Infrared radiation, Infrared imaging, Single mode fibers, Interferometers, Spectrographs

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Proceedings Article | 29 June 2006 Paper

Paper

Nine-channel tip/tilt detector at the CHARA Array

Judit Sturmann, Theo ten Brummelaar, Laszlo Sturmann, Harold McAlister

Proceedings Volume 6268, 62683T (2006) https://doi.org/10.1117/12.671855

KEYWORDS: Mirrors, Charge-coupled devices, Telescopes, Collimators, Objectives, Microscopes, Sensors, Cameras, Vignetting, Relays

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Proceedings Article | 29 June 2006 Paper

Paper

VEGA: a visible spectrograph and polarimeter for CHARA

G. Merlin, A. Blazit, D. Mourard, S. Lagarde, S. Bosio, H. McAlister, F. Hénault, Y. Bresson, P. Stee, N. Nardetto, K. Rousselet-Perraut, A. Roussel, J.-M. Clausse, A. Mérand, J. Sturmann, T. ten Brummelaar, R. Petrov, A. Marcotto, I. Tallon-Bosc, P. Kervella, L. Sturmann, D. Bonneau

Proceedings Volume 6268, 62683Q (2006) https://doi.org/10.1117/12.684475

KEYWORDS: Spectrographs, Visible radiation, Cameras, Sensors, Spectral resolution, Telescopes, Polarimetry, Visibility, Polarization, Signal to noise ratio

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Proceedings Article | 29 June 2006 Paper

Paper

A survey and characterization of extrasolar planetary systems host stars using the CHARA Array

H. McAlister, E. Baines, T. ten Brummelaar, N. Turner, J. Sturmann, L. Sturmann

Proceedings Volume 6268, 626845 (2006) https://doi.org/10.1117/12.671553

KEYWORDS: Stars, Planetary systems, Visibility, Calibration, Planets, Exoplanets, Surface conduction electron emitter displays, Systems modeling, Modulation, Atmospheric modeling

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Proceedings Article | 28 June 2006 Paper

Paper

CHARA/FLUOR: updates and performance

Antoine Mérand, Vincent Coudé du Foresto, Denis Ziegler, Theo ten Brummelaar, Jean-Michel Reess, Aglaé Kellerer

Proceedings Volume 6268, 62681F (2006) https://doi.org/10.1117/12.671045

KEYWORDS: Sensors, Prisms, Visibility, Interferometry, Single mode fibers, Stars, Mirrors, Photons, Collimation, K band

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Proceedings Article | 28 June 2006 Paper

Paper

The star 12 Persei and separated fringe packet binaries (SFPB)

Stephen Ridgway, H. McAlister, Douglas Gies, William Bagnuolo, Theo ten Brummelaar

Proceedings Volume 6268, 62682T (2006) https://doi.org/10.1117/12.672275

KEYWORDS: Stars, Calibration, Spectroscopy, Visibility, Error analysis, Interferometry, Ferroelectric materials, Binary data, Visualization, Interferometers

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Proceedings Article | 28 June 2006 Paper

Paper

Sparse-aperture adaptive optics

James Lloyd, John Monnier, Henry Woodruff, Theo ten Brummelaar, Peter Tuthill, Nils Turner, Charles Townes, Frantz Martinache, Michael Ireland

Proceedings Volume 6272, 62723A (2006) https://doi.org/10.1117/12.672342

KEYWORDS: Adaptive optics, Calibration, Point spread functions, Modulation transfer functions, Visibility, Telescopes, Interferometry, Signal to noise ratio, Deconvolution, Binary data

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Proceedings Article | 28 June 2006 Paper

Paper

Michigan Infrared Combiner (MIRC): commissioning results at the CHARA Array

Lazlo Sturmann, Judit Sturmann, Ming Zhao, Nathalie Thureau, Harold McAlister, Jean-Philippe Berger, Rafael Millan-Gabet, Scott Webster, John Monnier, Ettore Pedretti, Ajay Tannirkulam, Phil Muirhead, Theo ten Brummelaar

Proceedings Volume 6268, 62681P (2006) https://doi.org/10.1117/12.671982

KEYWORDS: Optical fibers, Infrared radiation, Telescopes, Infrared telescopes, Infrared imaging, Cameras, Sensors, Interferometers, K band, Spectrographs

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Proceedings Article | 28 June 2006 Paper

Paper

CHARA Michigan phase-tracker (CHAMP): design and fabrication

Nathalie Thureau, Ettore Pedretti, Philip Muirhead, Rafael Millan-Gabet, John Monnier, David Berger, Theo ten Brummelaar

Proceedings Volume 6268, 62683K (2006) https://doi.org/10.1117/12.672168

KEYWORDS: Modulation, Beam splitters, Sensors, Mirrors, Interferometers, Optical amplifiers, Optical fabrication, Fourier transforms, Staring arrays, Computing systems

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Proceedings Article | 27 June 2006 Paper

Paper

Recent progress at the CHARA interferometric array

N. Turner, H. McAlister, T. ten Brummelaar, S. Ridgway, J. Sturmann, L. Sturmann

Proceedings Volume 6268, 62680G (2006) https://doi.org/10.1117/12.671811

KEYWORDS: Stars, Interferometry, Telescopes, Visibility, Data modeling, Calibration, Mirrors, Astronomy, Interferometers, Atmospheric modeling

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Proceedings Article | 27 June 2006 Paper

Paper

Double-Fourier spatio-spectral decoding

Theo ten Brummelaar, Nils Turner, Michael Ireland, Peter Tuthill, Hal McAlister, Stephen Ridgway

Proceedings Volume 6268, 62680X (2006) https://doi.org/10.1117/12.672277

KEYWORDS: Stars, Interferometry, Calibration, Interferometers, Bromine, Spatial resolution, Solids, Bandpass filters, Visibility, Fourier transforms

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Proceedings Article | 23 June 2006 Paper

Paper

Detection of the inner debris disk of Vega with CHARA/FLUOR

Pierre Kervella, Olivier Absil, Jason Aufdenberg, Antoine Mérand, Stephen Ridgway, Emmanuel Di Folco, Theo ten Brummelaar, Harold McAlister, Jean-Charles Augereau, Vincent Coudé du Foresto

Proceedings Volume 6268, 626809 (2006) https://doi.org/10.1117/12.671664

KEYWORDS: Visibility, Stars, Data modeling, Interferometry, Calibration, K band, Mid-IR, Infrared radiation, Surface conduction electron emitter displays, Spatial frequencies

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Proceedings Article | 20 October 2004 Paper

Paper

CHARA recent technology and science

Stephen Ridgway, Nils Turner, David Berger, William Bagnuolo, Vincent Coude du Foresto, Antoine Merand, Jason Aufdenberg, Harold McAlister, Laszlo Sturmann, Chad Ogden, Stuart Taylor, Theo ten Brummelaar, Judit Sturmann

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551697

KEYWORDS: Telescopes, Mirrors, Stars, Visibility, Cameras, Calibration, Control systems, Video, Video surveillance, Data modeling

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Proceedings Article | 20 October 2004 Paper

Paper

The Michigan Infrared Combiner (MIRC): IR imaging with the CHARA Array

Rafael Millan-Gabet, Theo ten Brummelaar, Jean-Philippe Berger, John Monnier

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550804

KEYWORDS: Infrared imaging, Infrared radiation, Telescopes, Spectroscopy, Integrated optics, Stellar interferometry, Single mode fibers, Singular optics, Calibration, Synthetic apertures

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Proceedings Article | 21 February 2003 Paper

Paper

Remote operation of the CHARA Array via the Internet

Theo ten Brummelaar, Harold McAlister, Thomas Fallon

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458079

KEYWORDS: Astronomy, Telescopes, Internet, Control systems, Network security, Human-machine interfaces, Projection systems, Computing systems, Sensors, Information security

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Proceedings Article | 21 February 2003 Paper

Paper

Update on the CHARA array

Mark Shure, Harold McAlister, Laszlo Sturmann, Theo ten Brummelaar, Judit Sturmann, Stephen Ridgway, William Bagnuolo, Nils Turner

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.456763

KEYWORDS: Telescopes, Control systems, Space telescopes, Beam splitters, Infrared telescopes, Visible radiation, Sensors, Servomechanisms, Mirrors, CCD image sensors

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Proceedings Article | 21 February 2003 Paper

Paper

Infrared beam combination at the CHARA Array

Neda Safizadeh, Laszlo Sturmann, Stephen Ridgway, Mark Shure, Theo ten Brummelaar, Judit Sturmann, Harold McAlister, Nils Turner

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457984

KEYWORDS: Telescopes, Mirrors, Beam splitters, Infrared radiation, Infrared telescopes, Sensors, Short wave infrared radiation, Visible radiation, Cameras, Interferometry

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Proceedings Article | 21 February 2003 Paper

Paper

Well-resolved binary astrometry with the CHARA array

Judit Sturmann, Nils Turner, William Bagnuolo, Harold McAlister, Laszlo Sturmann, Theo ten Brummelaar, Stephen Ridgway

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459078

KEYWORDS: Stars, Interferometry, Astronomical imaging, Astronomy, Interferometers, Visibility, Image stacking, Ferroelectric materials, Speckle interferometry

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Proceedings Article | 21 February 2003 Paper

Paper

Preliminary results from the longitudinal dispersion compensation system for the CHARA array

Theo ten Brummelaar, William Bagnuolo, Harold McAlister, David Berger

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457161

KEYWORDS: Glasses, Interferometers, Visibility, Refractive index, Telescopes, Visible radiation, Near infrared, K band, Astronomy, Control systems

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Proceedings Article | 21 February 2003 Paper

Paper

FLUOR fibered beam combiner at the CHARA array

Stephen Ridgway, Harold McAlister, Antoine Merand, Cyrille Baudouin, Vincent Coude du Foresto, Guy Perrin, Theo ten Brummelaar, Pascal Borde, Antonin Remond

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459942

KEYWORDS: Visibility, K band, Calibration, Telescopes, Interferometry, Infrared radiation, Stars, Interferometers, Mirrors, Spatial resolution

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Proceedings Article | 21 February 2003 Paper

Paper

CHARA angular diameter measurements with a 330 meter baseline

David Berger, Judit Sturmann, William Bagnuolo, Mark Shure, Laszlo Sturmann, Nils Turner, Harold McAlister, Stephen Ridgway, Theo ten Brummelaar, Anders Jerkstrand

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459140

KEYWORDS: Stars, Calibration, Telescopes, Interferometry, Visibility, Beryllium, K band, Spatial filters, Optical instrument design, Astronomy

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Proceedings Article | 21 February 2003 Paper

Paper

Spectroscopic binary stars and the CHARA array

A. Jerkstrand, Chad Ogden, Theo ten Brummelaar, William Bagnuolo, Nils Turner, Thomas Fallon, Laszlo Sturmann, Judit Sturmann, Stuart Taylor, J. Seymour, David Berger, Harold McAlister, Stephen Ridgway

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459117

KEYWORDS: Stars, Spectroscopy, Visibility, Calibration, Interferometry, Chemical elements, Binary data, Visualization, Planetary systems, Inspection

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Proceedings Article | 21 February 2003 Paper

Paper

Testing the CHARA telescopes

Judit Sturmann, Nils Turner, Harold McAlister, Laszlo Sturmann, Stephen Ridgway, Theo ten Brummelaar

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459089

KEYWORDS: Telescopes, Mirrors, Wavefronts, Monochromatic aberrations, Optics manufacturing, Optical alignment, Visibility, Adaptive optics, Stars, Astronomical telescopes

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Proceedings Article | 21 February 2003 Paper

Paper

Fringe tracker for the CHARA array

Theo ten Brummelaar, Judit Sturmann, Chad Ogden

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459323

KEYWORDS: Beam splitters, Visible radiation, Mirrors, Phase measurement, Spectrographs, Sensors, Cameras, Mode locking, Photons, Infrared imaging

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Proceedings Article | 21 February 2003 Paper

Paper

Very-low-cost high-speed camera controller and camera simulator for RTLinux for the CHARA Array

Mark Shure, Braden Hines, Theo ten Brummelaar

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459352

KEYWORDS: Cameras, Device simulation, Connectors, Imaging systems, Clocks, Control systems, Computer simulations, Interfaces, High speed cameras, Power supplies

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Proceedings Article | 7 February 2003 Paper

Paper

Faint companion search to O-stars using the adaptive optics system on the 3.63-m telescope on Haleakala

Lewis Roberts, Theo ten Brummelaar, Nils Turner

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.459343

KEYWORDS: Stars, Adaptive optics, Space telescopes, Telescopes, Cameras, Point spread functions, Wavefront sensors, Electro optical systems, Observatories, Speckle interferometry

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Proceedings Article | 13 December 2002 Paper

Paper

CHARA array enclosure control system

Braden Hines, Theo ten Brummelaar

Proceedings Volume 4848, (2002) https://doi.org/10.1117/12.461565

KEYWORDS: Control systems, Computing systems, Human-machine interfaces, Telescopes, Domes, Safety, Switches, Control systems design, Astronomy, Distributed computing

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Proceedings Article | 5 July 2000 Paper

Paper

Technical update of the CHARA array

Laszlo Sturmann, Theo ten Brummelaar, Stephen Ridgway, William Bagnuolo, Nils Turner, Judit Sturmann, Harold McAlister

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390254

KEYWORDS: Telescopes, Mirrors, Control systems, Ions, Imaging systems, Coating, Beam splitters, Sensors, Cameras, Metrology

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Proceedings Article | 5 July 2000 Paper

Paper

The CHARA light pipe and vacuum system

Eric Simison, Rick Blakely, Harold McAlister, Stephen Ridgway, William Bagnuolo, Douglas Ferrell, Mark Shure, Nils Turner, Theo ten Brummelaar, Laszlo Sturmann

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390271

KEYWORDS: Telescopes, Aluminum, Mirrors, Plating, Optical benches, Vacuum tubes, Nanoimprint lithography, Sensors, Nickel, Interferometry

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Proceedings Article | 5 July 2000 Paper

Paper

The CHARA array on Mt. Wilson, California

Theo ten Brummelaar, Harold McAlister, Laszlo Sturmann, Eric Simison, William Bagnuolo, Nils Turner, Mark Shure, C. Hopper, Stephen Ridgway, Robert Cadman

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390241

KEYWORDS: Telescopes, Mirrors, Space telescopes, Interferometry, Astronomy, Infrared telescopes, Silicon, Sensors, Spatial resolution, Astronomical imaging

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Proceedings Article | 11 September 1998 Paper

Paper

Scientific results using the Mount Wilson Institute adaptive optics system

Harold McAlister, Brian Mason, Lewis Roberts, W. Hartkopf, Theo ten Brummelaar, Nils Turner

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321736

KEYWORDS: Stars, Adaptive optics, Photometry, Spectroscopy, Calibration, Diffraction, Point spread functions, Spatial resolution, Telescopes, Astronomy

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Proceedings Article | 24 July 1998 Paper

Paper

Progress on the CHARA array

Theo ten Brummelaar, W. Hartkopf, Stephen Ridgway, Harold McAlister, Nils Turner, Mark Shure, William Bagnuolo, Laszlo Sturmann

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317162

KEYWORDS: Telescopes, Infrared telescopes, Spatial resolution, Astronomy, Interferometry, Infrared imaging, Infrared radiation, Astrophysics, Mirrors, Astronomical imaging

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Proceedings Article | 24 July 1998 Paper

Paper

3D layout of the CHARA array on Mount Wilson

Theo ten Brummelaar

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317109

KEYWORDS: Mirrors, Telescopes, Polarization, Spatial resolution, Astronomy, Information operations, Computer aided design, Interferometers, Visibility, Waveguides

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Proceedings Article | 24 July 1998 Paper

Paper

Prototype single-mode fiber beam combiner for the CHARA array

Nils Turner, Theo ten Brummelaar

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317127

KEYWORDS: Telescopes, Prototyping, Single mode fibers, Spectrographs, Computer programming, Imaging systems, Fringe analysis, Interferometers, Singular optics, Spatial resolution

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Proceedings Article | 24 July 1998 Paper

Paper

High-performance fringe-tracking algorithms utilizing statistical models of atmospheric turbulence

Leslie Matson, Carlos Padilla, Keto Soosaar, Theo ten Brummelaar, Valeri Karlov

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317172

KEYWORDS: Atmospheric turbulence, Visibility, Detection and tracking algorithms, Atmospheric modeling, Monte Carlo methods, Statistical analysis, Interferometry, Charge-coupled devices, Statistical modeling, Sensors

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Proceedings Article | 24 July 1998 Paper

Paper

Optical telescopes and enclosures for ground-based interferometry: the CHARA array

Harold McAlister, Theo ten Brummelaar, Nils Turner, Laszlo Sturmann, M. Liang, Mark Shure, William Bagnuolo, Lawrence Barr, Stephen Ridgway, W. Hartkopf

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317163

KEYWORDS: Telescopes, Mirrors, Space telescopes, Interferometry, Optical instrument design, Astronomy, Wavefronts, Optical telescopes, Astronomical telescopes, Integrated optics

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Proceedings Article | 15 September 1995 Paper

Paper

CHARA optical/IR interferometric array project

Stephen Ridgway, William Bagnuolo, W. Hartkopf, Nils Turner, Theo ten Brummelaar, Harold McAlister

Proceedings Volume 2524, (1995) https://doi.org/10.1117/12.219572

KEYWORDS: Telescopes, Adaptive optics, Infrared imaging, Infrared radiation, Interferometry, Space telescopes, Stars, Infrared telescopes, Astronomy, Visibility

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Proceedings Article | 9 June 1994 Paper

Paper

CHARA Array

Stephen Ridgway, Harold McAlister, Allen Garrison, W. Hartkopf, William Robinson, Nils Turner, William Bagnuolo, Theo ten Brummelaar

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177234

KEYWORDS: Telescopes, Adaptive optics, Interferometry, Infrared imaging, Stars, Visible radiation, Visibility, Infrared radiation, Astrophysics, Spectroscopy

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Proceedings Article | 9 June 1994 Paper

Paper

Temporal power spectra of Zernike coefficients

Theo ten Brummelaar

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177258

KEYWORDS: Astronomy, Optical design, Adaptive optics, Monochromatic aberrations, Atmospheric turbulence, Zernike polynomials, Wavefronts, Spatial resolution, Testing and analysis, Turbulence

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Proceedings Article | 9 June 1994 Paper

Paper

CHARA beam combiner design

William Bagnuolo, Theo ten Brummelaar

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177235

KEYWORDS: Sensors, Prisms, Computer programming, Beam splitters, Imaging systems, Visibility, Single mode fibers, Optical tracking, Optical alignment, Optical components

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Showing 5 of 109 publications

Conference Committee Involvement (4)

Optical and Infrared Interferometry IV

23 June 2014 | Montréal, Quebec, Canada

Optical and Infrared Interferometry III

1 July 2012 | Amsterdam, Netherlands

Advances in Stellar Interferometry

25 May 2006 | Orlando, Florida , United States

Interferometry for Optical Astronomy II

22 August 2002 | Waikoloa, Hawai'i, United States

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