Dr. Antoine Mérand Profile

Dr. Antoine Mérand

VLTI Programme Scientist at European Southern Observatory

SPIE Involvement:

Conference Program Committee | Author | Editor

Publications (51)

Proceedings Article | 28 August 2024 Presentation

Presentation

Status of Asgard/BIFROST: short-wavelength, high-spectral dispersion interferometry at VLTI

Stefan Kraus, Sorabh Chhabra, Jyotirmay Paul, Owain Snaith, Daniel Lancaster, Daniel Mortimer, Narsireddy Anugu, Michael Ireland, Frantz Martinache, Denis Defrère, Xavier Haubois, Nicolas Schuhler, Antoine Merand, Andrea Bianco, Michele Frangiamore, John Monnier, Marc-Antoine Martinod, Joshua Carter, Isabelle Codron, Yi Lu, Tyler Gardner

Proceedings Volume 13095, 130950E (2024) https://doi.org/10.1117/12.3019876

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Proceedings Article | 28 August 2024 Presentation

Presentation

The European Interferometry Initiative: twenty years of supporting and growing the optical/infrared interferometry community in Europe

David Buscher, Paulo Garcia, Claudia Paladini, Foteini Lykou, Denis Defrère, Antoine Mérand, Thomas Henning, Guy Perrin, Stefan Kraus, Sebastian Hönig

Proceedings Volume 13095, 130951S (2024) https://doi.org/10.1117/12.3021147

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

VLTI status update

Xavier Haubois, Antoine Mérand, Roberto Abuter, Juan Pablo Araneda, Fuyan Bian, Pierre Bourget, Paul Bristow, Pablo Burgos, Françoise Delplancke-Ströbele, Roderick Dembet, Juan Pablo Gil, Andreas Glindemann, Frédéric Gonté, Patricia Guajardo, Norbert Hubin, Christian Hummel, Heidi Korhonen, Aaron Labdon, Johann Kolb, Johan Kosmalski, Sylvestre Lacour, Claudia Paladini, Laurent Pallanca, Luca Pasquini, Isabelle Percheron, Miguel Riquelme, Thomas Rivinius, Eleonora Sani, Linda Schmidtobreick, Peter Scicluna, Markus Schöller, Nicolas Schuhler, Konrad Tristram, Markus Wittkowski, Julien Woillez, Gérard Zins

Proceedings Volume 12183, 1218306 (2022) https://doi.org/10.1117/12.2635405

KEYWORDS: Telescopes, Astatine, Observatories, Adaptive optics, Spatial resolution, Polarization, Polarimetry, Optical spheres, L band, Data archive systems

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Proceedings Article | 29 August 2022 Presentation

Presentation

In memoriam Matt Willson

Antoine Mérand, Stefan Kraus, Fabien Baron

Proceedings Volume 12183, 121831Q (2022) https://doi.org/10.1117/12.2635454

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Flexible spectro-interferometric modelling of OIFITS data with PMOIRED

Antoine Mérand

Proceedings Volume 12183, 121831N (2022) https://doi.org/10.1117/12.2626700

KEYWORDS: Data modeling, Visibility, Stars, Interferometry, Fourier transforms, Binary data, Modeling, Spatial frequencies, Image restoration, Data analysis

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Optical interferometry imaging contest IX

J. Sanchez-Bermudez, A. Mérand, S. Sallum, J. Drevon, J. Kluska, F. Millour, P. Vermot, J. Young

Proceedings Volume 12183, 121831G (2022) https://doi.org/10.1117/12.2629430

KEYWORDS: Image restoration, Interferometry, James Webb Space Telescope, Visibility, Data modeling, Optical interferometry, Telescopes, Stars, Device simulation, Astronomy

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Evolution of VLTI science operations: supporting imaging, astrometry, and monitoring types of interferometric observations

Markus Wittkowski, Giacomo Beccari, Thomas Bierwirth, Stéphane Brillant, Paula Correia dos Santos, Olivier Hainaut, Xavier Haubois, Christian Hummel, Stéphane Marteau, Antoine Mérand, Steffen Mieske, Sangeeta Mysore, Claudia Paladini, Ferdinando Patat, John Pritchard, Michael Pruemm, Marina Rejkuba, Konrad R. Tristram

Proceedings Volume 12183, 121830X (2022) https://doi.org/10.1117/12.2627302

KEYWORDS: Interferometry, Stars, Observatories, Turbulence, Telescopes, Calibration, Adaptive optics, Interferometers, Efficient operations

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Proceedings Article | 16 December 2020 Presentation + Paper

Presentation + Paper

The ExoGRAVITY project: using single mode interferometry to characterize exoplanets

S. Lacour, J. Wang, M. Nowak, L. Pueyo, F. Eisenhauer, A.-M. Lagrange, P. Mollière, R. Abuter, A. Amorin, R. Asensio-Torres, M. Bauböck, M. Benisty, J. P. Berger, H. Beust, S. Blunt, A. Boccaletti, A. Bohn, M. Bonnefoy, H. Bonnet, W. Brandner, F. Cantalloube, P. Caselli, B. Charnay, G. Chauvin, E. Choquet, V. Christiaens, Y. Clénet, A. Cridland, P. T. de Zeeuw, R. Dembet, J. Dexter, A. Drescher, G. Duvert, F. Gao, P. Garcia, R. Garcia Lopez, T. Gardner, E. Gendron, R. Genzel, S. Gillessen, J. H. Girard, X. Haubois, G. Heißel, T. Henning, S. Hinkley, S. Hippler, M. Horrobin, M. Houllé, Z. Hubert, A. Jiménez-Rosales, L. Jocou, J. Kammerer, M. Keppler, P. Kervella, L. Kreidberg, V. Lapeyrère, J.-B. Le Bouquin, P. Léna, D. Lutz, A.-L. Maire, A. Mérand, J. D. Monnier, D. Mouillet, A. Muller, E. Nasedkin, T. Ott, G. P. P. L. Otten, C. Paladini, T. Paumard, K. Perraut, G. Perrin, O. Pfuhl, J. Rameau, L. Rodet, G. Rodriguez-Coira, G. Rousset, J. Shangguan, T. Shimizu, J. Stadler, O. Straub, C. Straubmeier, E. Sturm, T. Stolker, E. van Dishoeck, A. Vigan, F. Vincent, S. D. von Fellenberg, K. Ward-Duong, F. Widmann, E. Wieprecht, E. Wiezorrek, J. Woillez

Proceedings Volume 11446, 114460O (2020) https://doi.org/10.1117/12.2561667

KEYWORDS: Interferometry, Exoplanets

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

VLTI status update: tapping into a powerful second-generation instrumentation

Xavier Haubois, Roberto Abuter, Emmanuel Aller-Carpentier, Jaime Alonso, Juan Beltran, Jean-Philippe Berger, Pierre Bourget, Paul Bristow, Luis Caniguante, Bruno Chazelas, Claudia Cid, Ralf Conzelmann, Angela Cortes, Pascaline Darré, Alain Delboulbé, Françoise Delplancke-Ströbele, Diego Del Valle, Roderick Dembet, Reinaldo Donoso, Christophe Dupuy, Sebastien Egner, Frank Eisenhauer, Lorena Faundez, Eloy Fuenteseca, Robert Frahm, Daniel Gaytan, Juan Pablo Gil, Andreas Glindemann, Frédéric Gonté, Jaime Gonzales, Patricia Guajardo, Thibaut Guerlet, Sylvain Guieu, Pablo Gutierrez, Pierre Haguenauer, Pierre van der Heyden, Stefan Huber, Norbert Hubin, Christian Hummel, Lieselotte Jochum, Laurent Jocou, Jean-Paul Kirchbauer, Johann Kolb, Johan Kosmalski, Peter Krempl, Sylvestre Lacour, Jean-Baptiste Le Bouquin, Julien Leclercq, Jean Louis Lizon, Bruno Lopez, Yves Magnard, Anthony Meilland, Alexander Meister, Antoine Mérand, Steffen Mieske, Thibaut Moulin, Juan Osorio, Jürgen Ott, Claudia Paladini, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Célia Pelluet, Isabelle Percheron, Lorenzo Pettazzi, Andrés Pino, Sébastien Poupar, Andrés Ramírez, Javier Reyes, Miguel Riquelme, Thomas Rivinius, Sylvain Rochat, Fernando Salgado, Markus Schöller, Nicolas Schuhler, Pavel Shchekaturov, Christian Stephan, Marcos Suarez, Alain Smette, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Christophe Verinaud, Markus Wittkowski, Julien Woillez, Gérard Zins

Proceedings Volume 11446, 1144606 (2020) https://doi.org/10.1117/12.2561486

KEYWORDS: Telescopes, Adaptive optics, Space operations

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Proceedings Article | 10 July 2018 Presentation

Presentation

Data reduction of the VLTI/GRAVITY interferometric instrument (Conference Presentation)

Vincent Lapeyrère, Pierre Kervella, Jean-Baptiste Le Bouquin, Sylvestre Lacour, Cesar Enrique Garcia-Dabó, Antoine Mérand, Julien Woillez, Guy Perrin, Frank Eisenhauer, Karine Perraut, Christian Straubmeier, António Amorim, Wolfgang Brandner

Proceedings Volume 10701, 107011F (2018) https://doi.org/10.1117/12.2314239

KEYWORDS: Interferometry, Fourier transforms, Information operations, Phase measurement, Algorithm development, Software development, Telescopes, Interferometers, Integrated optics, Signal processing

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Proceedings Article | 9 July 2018 Paper

Paper

Hi-5: a potential high-contrast thermal near-infrared imager for the VLTI

D. Defrère, M. Ireland, O. Absil, J.-P. Berger, W. Danchi, S. Ertel, A. Gallenne, F. Hénault, P. Hinz, E. Huby, S. Kraus, L. Labadie, J.-B. Le Bouquin, G. Martin, A. Matter, B. Mennesson, A. Mérand, S. Minardi, J. Monnier, B. Norris, G. Orban de Xivry, E. Pedretti, J.-U. Pott, M. Reggiani, E. Serabyn, J. Surdej, K. R. W. Tristram, J. Woillez

Proceedings Volume 10701, 107010U (2018) https://doi.org/10.1117/12.2313700

KEYWORDS: Planets, Interferometry, Stars, Exoplanets, Imaging systems, Interferometers, L band, Mid-IR, Integrated optics, Astrophysics

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

The VLTI roadmap for the next decade

Antoine Mérand

Proceedings Volume 10701, 1070114 (2018) https://doi.org/10.1117/12.2313354

KEYWORDS: Telescopes, Space telescopes, Interferometry, Interferometers, Spatial resolution, Astronomy, Observatories, Large telescopes, Near infrared

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Proceedings Article | 9 July 2018 Paper

Paper

VLTI status update: three years into the second generation

Julien Woillez, Pascaline Darré, Sebastien Egner, Frédéric Gonté, Xavier Haubois, Antoine Mérand, Nicolas Schuhler, José Antonio Abad, Roberto Abuter, Emmanuel Aller-Carpentier, Jaime Alonso, Luigi Andolfato, Pablo José Barriga, Juan Beltran, Jean-Philippe Berger, Pierre Bourget, Roland Brast, Paul Bristow, Luis Caniguante, Ralf Conzelmann, Angela Cortes, Alain Delboulbé, Françoise Delplancke-Ströbele, Diego Del Valle, Roderick Dembet, Frédéric Derie, Reinaldo Donoso, Philippe Duhoux, Christophe Dupuy, Andreas Förster, Eloy Fuenteseca, Robert Frahm, Daniel Gaytan, Andreas Glindemann, Jaime Gonzales, Thibaut Guerlet, Sylvain Guieu, Stéphane Guisard, Pablo Gutierrez, Pierre Haguenauer, Andreas Haimerl, Pierre van der Heyden, Stefan Huber, Norbert Hubin, Lieselotte Jochum, Laurent Jocou, Paul Jolley, Jean-Paul Kirchbauer, Johann Kolb, Johan Kosmalski, Peter Krempl, Jean-Baptiste Le Bouquin, Samuel Lévêque, Paul Lilley, Jean Louis Lizon, Yves Magnard, Pedro Mardones, Alexander Meister, Thibaut Moulin, Juan Osorio, Jürgen Ott, Laurent Pallanca, Jérôme Paufique, Marcus Pavez, Luca Pasquini, Isabelle Percheron, Lorenzo Pettazzi, Thanh Phan Duc, Jean Francois Pirard, Andres Pino, Sébastien Poupar, Jutta Quentin, Andres Ramírez, Javier Reyes, Robert Ridings, Sylvain Rochat, Thomas Rivinius, Fernando Salgado, Markus Schöller, Pavel Shchekaturov, Christian Stephan, Marcos Suarez, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Christophe Verinaud, Willem-Jan de Wit, Gérard Zins

Proceedings Volume 10701, 1070103 (2018) https://doi.org/10.1117/12.2312042

KEYWORDS: Telescopes, Adaptive optics, Metrology, Interferometers, Stars

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Proceedings Article | 9 July 2018 Paper

Paper

Optical interferometry image reconstruction contest VIII

Antoine Mérand, Antxon Alberdid, Jacques Kluska, Isabelle Tallon-Bosc, Michel Tallon, Éric Thiébaut, Joel Sánchez-Bermudez, Rainer Schödel, Ferréol Soulez, John Young

Proceedings Volume 10701, 107011U (2018) https://doi.org/10.1117/12.2500674

KEYWORDS: Image restoration, Data modeling, Optical interferometry, Interferometry, Reconstruction algorithms

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Proceedings Article | 4 August 2016 Paper

Paper

The 2nd generation VLTI path to performance

Julien Woillez, Jaime Alonso, Jean-Philippe Berger, Henri Bonnet, Willem-Jan de Wit, Sebastian Egner, Frank Eisenhauer, Frédéric Gonté, Sylvain Guieu, Pierre Haguenauer, Antoine Mérand, Lorenzo Pettazzi, Sébastien Poupar, Markus Schöller, Nicolas Schuhler

Proceedings Volume 9907, 990706 (2016) https://doi.org/10.1117/12.2233971

KEYWORDS: Telescopes, Wavefront sensors, Adaptive optics, Optical tracking, Stars, Infrared radiation, Interferometers, Astatine, Mirrors, Infrared telescopes

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Proceedings Article | 4 August 2016 Paper

Paper

An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status

A. Matter, B. Lopez, P. Antonelli, M. Lehmitz, F. Bettonvil, U. Beckmann, S. Lagarde, W. Jaffe, R. Petrov, P. Berio, F. Millour, S. Robbe-Dubois, A. Glindemann, P. Bristow, M. Schoeller, T. Lanz, T. Henning, G. Weigelt, M. Heininger, S. Morel, P. Cruzalebes, K. Meisenheimer, R. Hofferbert, S. Wolf, Y. Bresson, T. Agocs, F. Allouche, J.-C. Augereau, G. Avila, C. Bailet, J. Behrend, G. van Belle, J.-P. Berger, R. van Boekel, P. Bourget, R. Brast, J.-M. Clausse, C. Connot, R. Conzelmann, G. Csepany, W. Danchi, M. Delbo, C. Dominik, A. van Duin, E. Elswijk, Y. Fantei, G. Finger, A. Gabasch, F. Gonté, U. Graser, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, C Hummel, J. Isderda, D. Ives, G. Jakob, A. Jasko, P. Jolley, S. Kiraly, J. Kragt, T. Kroener, G. Kroes, S. Kuindersma, L. Labadie, W. Laun, C. Leinert, J.-L. Lizon, C. Lucuix, A. Marcotto, F. Martinache, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Menardi, A. Merand, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, E. Pozna, R. Roelfsema, G. Rupprecht, D. Schertl, C. Schmidt, M. Schuil, A. Spang, J. Stegmeier, N. Tromp, F. Vakili, M. Vannier, K. Wagner, L. Venema, J. Woillez

Proceedings Volume 9907, 99070A (2016) https://doi.org/10.1117/12.2233052

KEYWORDS: Mid-IR, Interferometry, Telescopes, Signal detection, Sensors, Stars, Spectral resolution, Fourier transforms, L band, Cameras

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Proceedings Article | 4 August 2016 Paper

Paper

VLT interferometer upgrade for the 2nd generation of interferometric instruments

Frederic Gonté, Julien Woillez, Nicolas Schuhler, Sebastian Egner, Antoine Merand, José Antonio Abad, Sergio Abadie, Roberto Abuter, Margarita Acuña, Fatmé Allouche, Jaime Alonso, Luigi Andolfalto, Pierre Antonelli, Gerardo Avila, Pablo José Barriga, Juan Beltran, Jean-Philippe Berger, Carlos Bolados, Henri Bonnet, Pierre Bourget, Roland Brast, Paul Bristow, Luis Caniguante, Roberto Castillo, Ralf Conzelmann, Angela Cortes, Françoise Delplancke, Diego Del Valle, Frederic Derie, Alvaro Diaz, Reinaldo Donoso, Reinhold Dorn, Philippe Duhoux, Christophe Dupuy, Frank Eisenhauer, Christian Elao, Eloy Fuenteseca, Ruben Fernandez, Daniel Gaytan, Andreas Glindemann, Jaime Gonzales, Sylvain Guieu, Stephane Guisard, Pierre Haguenauer, Andreas Haimerl, Volker Heinz, Juan Pablo Henriquez, P. van der Heyden, Norbert Hubin, Rodrigo Huerta, Lieselotte Jochum, Alfredo Leiva, Samuel Lévêque, Jean-Louis Lizon, Fernando Luco, Pedro Mardones, Angel Mellado, Juan Osorio, Jürgen Ott, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Isabelle Percheron, Jean-Francois Pirard, Duc Than Phan, Juan Carlos Pineda, Andres Pino, Sebastien Poupar, Andres Ramírez, Claudio Reinero, Miguel Riquelme, Juan Romero, Thomas Rivinius, Chester Rojas, Felix Rozas, Fernando Salgado, Silvia Scheithauer, Christian Schmid, Markus Schöller, Waldo Siclari, Christian Stephan, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Willem-Jan de Wit, Andrew Wright, Gerard Zins

Proceedings Volume 9907, 99071Z (2016) https://doi.org/10.1117/12.2233350

KEYWORDS: Interferometry, Adaptive optics, Telescopes, Interferometers, Stars, Infrared radiation, Interferometry, Astatine, Mirrors, Mid-IR, Sensors

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Proceedings Article | 4 August 2016 Paper

Paper

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

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

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 | 26 July 2016 Paper

Paper

How to create space inside the VLTI: PIONIER 3D project

P. Bourget, G. Zins, S. Guieu, N. Schuhler, P. Haguenauer, S. Poupar, J. Berger, F. Gonté, J. Lebouquin, T. Rivinius, A. Mérand, L. Jocou

Proceedings Volume 9907, 99071Q (2016) https://doi.org/10.1117/12.2231666

KEYWORDS: Interferometry, Astrophysics, Interferometers, Sensors, Integrated optics, Optical alignment, Calibration, Mirrors, Optical benches, Observatories

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Proceedings Article | 26 July 2016 Paper

Paper

Interferometric field of view measurements at the VLTI

Christian Hummel, Jean-Baptiste Le Bouquin, Antoine Merand

Proceedings Volume 9907, 99073B (2016) https://doi.org/10.1117/12.2230899

KEYWORDS: Interferometry, Data modeling, Speckle, Stars, Signal attenuation, Binary data, Electroluminescent displays, Space telescopes, Telescopes, Observatories

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Proceedings Article | 15 July 2016 Paper

Paper

New facilities, new challenges: the telescope and instrument operators evolution at ESO

Andres Pino Pavez, Stéphane Brillant, Susana Cerda, Antoine Mérand, Steffen Mieske, Alain Smette, Cristian Romero

Proceedings Volume 9910, 99101K (2016) https://doi.org/10.1117/12.2231058

KEYWORDS: Observatories, Telescopes, Astronomical telescopes, Data acquisition, Observatories, Lanthanum, Space telescopes, Databases, Interfaces, Transparency, Advanced distributed simulations

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Proceedings Article | 6 August 2014 Paper

Paper

SciOps2.0: an evolution of ESO/VLT's science operations model

Christophe Dumas, Henri Boffin, Stéphane Brillant, George Hau, Cédric Ledoux, Antoine Mérand, Steffen Mieske, Andres Pino, Thomas Rivinius, Alain Smette, Andrew Wright

Proceedings Volume 9149, 91491G (2014) https://doi.org/10.1117/12.2056926

KEYWORDS: Observatories, Telescopes, Data modeling, Imaging spectroscopy, Adaptive optics, Infrared telescopes, Calibration, Neodymium, Infrared imaging, Thermography

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Proceedings Article | 30 July 2014 Paper

Paper

RAPID, a revolutionary fast optical to NIR camera applied to interferometry

S. Guieu, P. Feautrier, G. Zins, J.-B. Le Bouquin, E. Stadler, P. Kern, J. Rothman, M. Tauvy, J. Coussement, E. de Borniol, J-L. Gach, M. Jacquard, T. Moulin, S. Rochat, A. Delboulb, S. Derelle, C. Robert, M. Vuillermet, A. Mérand, P. Bourget

Proceedings Volume 9146, 91461N (2014) https://doi.org/10.1117/12.2056334

KEYWORDS: Sensors, Cameras, Interferometry, Stars, Telescopes, Infrared cameras, Avalanche photodetectors, Near infrared, Interferometers, Polarization

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Proceedings Article | 24 July 2014 Paper

Paper

Improving the astrometric performance of VLTI-PRIMA

J. Woillez, R. Abuter, L. Andolfato, J.-P. Berger, H. Bonnet, F. Delplancke, F. Derie, N. Di Lieto, S. Guniat, A. Mérand, T. Phan Duc, C. Schmid, N. Schuhler, T. Henning, R. Launhardt, F. Pepe, Didier Queloz, A. Quirrenbach, S. Reffert, J. Sahlmann, D. Segransan

Proceedings Volume 9146, 91461H (2014) https://doi.org/10.1117/12.2054723

KEYWORDS: Metrology, Space telescopes, Telescopes, Stars, Sensors, Mirrors, Polarization, Retroreflectors, Signal to noise ratio, Exoplanets

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Proceedings Article | 24 July 2014 Paper

Paper

VLTI status update: a decade of operations and beyond

Antoine Mérand, Roberto Abuter, Emmanuel Aller-Carpentier, Luigi Andolfato, Jaime Alonso, Jean-Philippe Berger, Guillaume Blanchard, Henri Boffin, Pierre Bourget, Paul Bristow, Claudia Cid, Willem-Jan de Wit, Diego del Valle, Françoise Delplancke-Ströbele, Frédéric Derie, Lorena Faundez, Steve Ertel, Rebekka Grellmann, Philippe Gitton, Andreas Glindemann, Patricia Guajardo, Sylvain Guieu, Stéphane Guisard, Serge Guniat, Pierre Haguenauer, Cristian Herrera, Christian Hummel, Carlos La Fuente, Marcelo Lopez, Pedro Mardones, Sébastien Morel, André Müller, Isabelle Percheron, Than Phan Duc, Andres Pino, Sébastien Poupar, Eszter Pozna, Andres Ramirez, Srihdaran Rengaswamy, Lionel Rivas, Thomas Rivinius, Alex Segovia, Christian Schmid, Markus Schöller, Nicolas Schuhler, Julien Woillez, Markus Wittkowski

Proceedings Volume 9146, 91460J (2014) https://doi.org/10.1117/12.2057150

KEYWORDS: Telescopes, Astatine, Interferometry, Observatories, Interferometers, Adaptive optics, Space telescopes, Stars, Large telescopes, Calibration

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Proceedings Article | 24 July 2014 Paper

Paper

The 2014 interferometric imaging beauty contest

John Monnier, Jean-Philippe Berger, Jean-Baptiste Le Bouquin, Peter Tuthill, Markus Wittkowski, Rebekka Grellmann, André Müller, Sridhar Renganswany, Christian Hummel, Karl-Heinz Hofmann, Dieter Schertl, Gerd Weigelt, John Young, David Buscher, Joel Sanchez-Bermudez, Antxon Alberdi, Rainer Schoedel, Rainer Köhler, Ferréol Soulez, Éric Thiébaut, Jacques Kluska, Fabien Malbet, Gilles Duvert, Stefan Kraus, Brian Kloppenborg, Fabien Baron, Willem-Jan de Wit, Thomas Rivinius, Antoine Merand

Proceedings Volume 9146, 91461Q (2014) https://doi.org/10.1117/12.2057312

KEYWORDS: Stars, Image restoration, Interferometry, Image processing, Visibility, Reconstruction algorithms, Telescopes, Data modeling, Spatial resolution, Optical interferometry

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Proceedings Article | 22 July 2014 Paper

Paper

VLTI-UT vibrations effort and performances

Sébastien Poupar, Pierre Haguenauer, Jaime Alonso, Nicolas Schuhler, Juan-Pablo Henriquez, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Roberto Castillo, Philippe Gitton, Frederic Gonte, Nicola Di Lieto, Jean-Louis Lizon, Antoine Merand, Julien Woillez

Proceedings Volume 9145, 91452M (2014) https://doi.org/10.1117/12.2055435

KEYWORDS: Telescopes, Mirrors, IRIS Consortium, Electronics, Interferometers, Infrared telescopes, Metrology, Sensors, Large telescopes, Infrared sensors

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Proceedings Article | 18 July 2014 Paper

Paper

Generic control software connecting astronomical instruments to the reflective memory data recording system of VLTI - bossvlti

Eszter Pozna, A. Ramirez, A. Mérand, A. Mueller, R. Abuter, R. Frahm, S. Morel, C. Schmid, T. Phan Duc, F. Delplancke-Ströbele

Proceedings Volume 9152, 91522X (2014) https://doi.org/10.1117/12.2054727

KEYWORDS: Sensors, Astronomy, Reflectivity, Binary data, Databases, Software development, Telecommunications, Control systems, Data communications, Software frameworks

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Proceedings Article | 26 September 2013 Paper

Paper

Astrometric detection of exoplanets from the ground

J. Sahlmann, P. Lazorenko, A. Mérand, Didier Queloz, D. Ségransan, J. Woillez

Proceedings Volume 8864, 88641B (2013) https://doi.org/10.1117/12.2023929

KEYWORDS: Planets, Stars, Exoplanets, Telescopes, Interferometers, Space telescopes, Cameras, Exoplanetary science, Atmospheric optics, Motion measurement

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Proceedings Article | 12 September 2012 Paper

Paper

Narrow-angle astrometry with PRIMA

J. Sahlmann, D. Ségransan, A. Mérand, N. Zimmerman, R. Abuter, B. Chazelas, F. Delplancke, T. Henning, A. Kaminski, R. Köhler, R. Launhardt, M. Mohler, F. Pepe, Didier Queloz, A. Quirrenbach, S. Reffert, C. Schmid, N. Schuhler, T. Schulze-Hartung

Proceedings Volume 8445, 84450S (2012) https://doi.org/10.1117/12.926214

KEYWORDS: Stars, Metrology, Planets, Telescopes, Exoplanets, Sensors, Electroluminescent displays, Interferometers, Calibration, Mirrors

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Proceedings Article | 12 September 2012 Paper

Paper

The Very Large Telescope Interferometer v2012+

Pierre Haguenauer, Roberto Abuter, Luigi Andolfato, Jaime Alonso, Guillaume Blanchard, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Philippe Gitton, Juan Carlos Gonzalez, Stéphane Guisard, Serge Guniat, Gerhard Hudepohl, Andreas Kaufer, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Sebastien Poupar, Andres Ramirez, Claudio Reineiro, Sridharan Rengaswamy, Thomas Rivinius, Markus Schöller, Christian Schmid, Alex Segovia, Nicolas Schuhler, Guillermo Valdes, Willem Jan de Wit, Markus Wittkowski

Proceedings Volume 8445, 84450D (2012) https://doi.org/10.1117/12.925323

KEYWORDS: Telescopes, Interferometers, Astatine, Interferometry, Large telescopes, Observatories, Systems engineering, Control systems, Mirrors, Sensors

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Proceedings Article | 12 September 2012 Paper

Paper

Estimating visibility amplitudes with the PRIMA fringe trackers

Nuno Gomes, Christian Schmid, Johannes Sahlmann, Sérge Ménardi, Roberto Abuter, Antoine Mérand, Françoise Delplancke

Proceedings Volume 8445, 844522 (2012) https://doi.org/10.1117/12.925445

KEYWORDS: Visibility, Sensors, Error analysis, Detection and tracking algorithms, Phase shifts, Algorithm development, Calibration, Statistical analysis, Stars, Atmospheric modeling

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Proceedings Article | 12 September 2012 Paper

Paper

Fringe tracking performance monitoring: FINITO at VLTI

A. Mérand, F. Patru, J.-P. Berger, I. Percheron, S. Poupar

Proceedings Volume 8445, 84451K (2012) https://doi.org/10.1117/12.925450

KEYWORDS: Interferometry, Signal to noise ratio, Telescopes, Astatine, Visibility, Artificial neural networks, Optical tracking, Atmospheric turbulence, Sensors, Binary data

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Proceedings Article | 12 September 2012 Paper

Paper

Status of PRIMA for the VLTI: heading to astrometry

C. Schmid, R. Abuter, A. Merand, J. Sahlmann, J. Alonso, L. Andolfato, G. van Belle, F. Delplancke, F. Dérie, N. Di Lieto, R. Frahm, Ph. Gitton, N. Gomes, P. Haguenauer, B. Justen, S. Lévêque, S. Ménardi, S. Morel, A. Müller, T. Phan Duc, Eszter Pozna, A. Ramirez, N. Schuhler, D. Ségransan

Proceedings Volume 8445, 84450F (2012) https://doi.org/10.1117/12.926426

KEYWORDS: Stars, Signal to noise ratio, Telescopes, Wavelet transforms, Sensors, IRIS Consortium, Mirrors, Observatories, Interferometry, Interferometers

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Proceedings Article | 12 September 2012 Paper

Paper

Accompanying optical interferometry worldwide: the JMMC tools and services

G. Mella, S. Lafrasse, L. Bourgès, A. Chelli, G. Duvert, O. Chesneau, F. Malbet, I. Tallon-Bosc, M. Vannier, O. Absil, M. Benisty, J.-P. Berger, H. Beust, D. Bonneau, P. Cruzalebes, X. Delfosse, A. Domiciano de Souza, P. Kervella, J. Kluska, J.-B. Le Bouquin, S. Meimon, A. Merand, F. Millour, J.-L. Monin, D. Mourard, L. Mugnier, N. Nardetto, K. Perraut, M. Tallon

Proceedings Volume 8445, 84453F (2012) https://doi.org/10.1117/12.925729

KEYWORDS: Data modeling, Interferometry, Calibration, Optical interferometry, Software development, Interfaces, Visibility, Interferometers, Java, Databases

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Proceedings Article | 29 July 2010 Paper

Paper

Status and new operation modes of the versatile VLT/NaCo

Julien H. Girard, Markus Kasper, Sascha Quanz, Matthew Kenworthy, Sridharan Rengaswamy, Rainer Schödel, Alexandre Gallenne, Stefan Gillessen, Nicolas Huerta, Pierre Kervella, Nick Kornweibel, Rainer Lenzen, Antoine Mérand, Guillaume Montagnier, Jared O'Neal, Gérard Zins

Proceedings Volume 7736, 77362N (2010) https://doi.org/10.1117/12.856799

KEYWORDS: Adaptive optics, Stars, Point spread functions, Imaging systems, K band, Speckle, Wavefront sensors, Exoplanets, Coronagraphy, Holography

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Proceedings Article | 22 July 2010 Paper

Paper

Perspectives for the AMBER Beam Combiner

Antoine Mérand, Stan Stefl, Pierre Bourget, Andres Ramirez, Fabien Patru, Pierre Haguenauer, Stéphane Brillant

Proceedings Volume 7734, 77340S (2010) https://doi.org/10.1117/12.856889

KEYWORDS: Visibility, Spectral calibration, K band, Atmospheric corrections, Calibration, Stars, Spectral resolution, Lawrencium, Atmospheric optics, Interferometry

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Proceedings Article | 22 July 2010 Paper

Paper

Status of the VLTI-UT performances wrt vibrations

Sebastien Poupar, Pierre Haguenauer, Antoine Merand, Jaime Alonso, Pierre Bourget, Stephane Brillant, Roberto Castillo, Nicola Di Lieto, Jean-Louis Lizon, Philippe Gitton, Johannes Sahlmann, Nicolas Schuhler

Proceedings Volume 7734, 773437 (2010) https://doi.org/10.1117/12.856757

KEYWORDS: Telescopes, Mirrors, Interferometry, Control systems, Space telescopes, Visibility, Large telescopes, Interferometers, Electronics, Observatories

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Proceedings Article | 22 July 2010 Paper

Paper

The very large telescope Interferometer: 2010 edition

Pierre Haguenauer, Jaime Alonso, Pierre Bourget, Stephane Brillant, Philippe Gitton, Stephane Guisard, Sébastien Poupar, Nicolas Schuhler, Roberto Abuter, Luigi Andolfato, Guillaume Blanchard, Jean-Philippe Berger, Angela Cortes, Frédéric Dérie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Andreas Glindemann, Serge Guniat, Gerhard Huedepohl, Andreas Kaufer, Jean-Baptiste Le Bouquin, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Andres Pino, Andres Ramirez, Sridharan Rengaswamy, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Markus Schoeller, Christian Schmid, Stan Stefl, Guillermo Valdes, Gerard van Belle, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7734, 773404 (2010) https://doi.org/10.1117/12.857070

KEYWORDS: Telescopes, Astatine, Interferometers, Interferometry, Adaptive optics, Large telescopes, Mirrors, Observatories, Statistical analysis, Image quality

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Proceedings Article | 28 July 2008 Paper

Paper

An update on the CHARA array

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

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

Adaptive optics for the CHARA Array

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

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

Sensitive visible interferometry with PAVO

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

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 | 29 June 2006 Paper

Paper

VEGA: a visible spectrograph and polarimeter for CHARA science cases description

Philippe Stee, Denis Mourard, Daniel Bonneau, Paul Berlioz-Arthaud, Armando Domiciano de Souza, Renaud Foy, Petr Harmanec, Slobodan Jankov, Pierre Kervella, Pavel Koubsky, Stéphane Lagarde, Jean-Baptiste Le Bouquin, Philippe Mathias, Antoine Mérand, Nicolas Nardetto, Romain Petrov, Karine Rousselet-Perraut, Chantal Stehlé, Gerd Weigelt

Proceedings Volume 6268, 62683R (2006) https://doi.org/10.1117/12.684479

KEYWORDS: Stars, Visible radiation, Spectral resolution, Spatial resolution, Interferometry, Interferometers, Visibility, Signal to noise ratio, Magnetism, Spectroscopy

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Proceedings Article | 29 June 2006 Paper

Paper

VEGA: a visible spectrograph and polarimeter for CHARA

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

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 | 28 June 2006 Paper

Paper

CHARA/FLUOR: updates and performance

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

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 | 27 June 2006 Paper

Paper

Cepheids at high angular resolution: recent results obtained by stellar interferometry

Antoine Mérand

Proceedings Volume 6268, 62680H (2006) https://doi.org/10.1117/12.671000

KEYWORDS: Stars, Visibility, Interferometry, Calibration, Distance measurement, Spatial resolution, Stellar interferometry, K band, Interferometers, Spectroscopy

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Proceedings Article | 23 June 2006 Paper

Paper

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

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

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

A catalog of calibrator stars for 200-meter baseline near-infrared stellar interferometry

Antoine Merand, Pascal Borde, Vincent Coude du Foresto

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550757

KEYWORDS: Stars, Calibration, Visibility, Infrared radiation, Interferometry, K band, Interferometers, Stellar interferometry, Infrared photography, Systems modeling

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Proceedings Article | 20 October 2004 Paper

Paper

Remote observations with FLUOR and the CHARA Array

Antoine Merand, Mirel Birlan, Remi Lelu de Brach, Vincent Coude du Foresto

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550758

KEYWORDS: Infrared telescopes, Telescopes, Interferometry, Control systems, Observatories, Stars, Infrared radiation, Optical arrays, Mirrors, Optical telescopes

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Proceedings Article | 20 October 2004 Paper

Paper

CHARA recent technology and science

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

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 | 21 February 2003 Paper

Paper

FLUOR fibered beam combiner at the CHARA array

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

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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Showing 5 of 51 publications

Proceedings Volume Editor (3)

SPIE Conference Volume | 7 September 2022

Optical and Infrared Interferometry and Imaging VIII

SPIE Conference Volume | 4 January 2021

Optical and Infrared Interferometry and Imaging VII

SPIE Conference Volume | 10 September 2018

Optical and Infrared Interferometry and Imaging VI

Conference Committee Involvement (7)

Optical and Infrared Interferometry and Imaging IX

17 June 2024 | Yokohama, Japan

Optical and Infrared Interferometry and Imaging VIII

17 July 2022 | Montréal, Québec, Canada

Optical and Infrared Interferometry and Imaging VII

14 December 2020 | Online Only, California, United States

Optical and Infrared Interferometry and Imaging VII

13 December 2020 | San Diego, California, United States

Optical and Infrared Interferometry and Imaging VI

11 June 2018 | Austin, Texas, United States

Showing 5 of 7 Conference Committees

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