Prof. François Hammer Profile

Prof. François Hammer

Astronome at Observatoire de Paris a Meudon

SPIE Involvement:

Author

Publications (44)

Proceedings Article | 13 December 2020 Paper

Paper

MOSAIC: the high multiplex and multi-IFU spectrograph for the ELT

Rubén Sánchez-Janssen, Francois Hammer, Simon Morris, Jean-Gabriel Cuby, Lex Kaper, Matthias Steinmetz, Jose Afonso, Beatriz Barbuy, Edwin Bergin , Alexis Finoguenov, Jesus Gallego, Susan Kassin, Chris Miller, Göran Östlin, Laura Pentericci, Daniel Schaerer, Bodo Ziegler, Fanny Chemla, Gavin Dalton, Fatima De Frondat, Chris Evans, David le Mignant, Mathieu Puech, Myriam Rodrigues, Sylvestre Taburet, Lidia Tasca, Yanbin Yang, Sandrine Zanchetta, Timothy Butterley, Jean-Marc Conan, Kjetil Dohlen, Marc Dubbeldam, Kacem El Hadi, Annemieke Janssen, Thierry Fusco, Andreas Kelz, Marie Larrieu, Ian Lewis, Caroline Lim, Mike Macintosh, Tim Morris, Ramon Navarro, Walter Seifert

Proceedings Volume 11447, 1144725 (2020) https://doi.org/10.1117/12.2561222

KEYWORDS: Spectrographs, Optical instrument design, Astronomical imaging, Large telescopes, Visible radiation, Astronomy, Astronomical telescopes, Telescopes

Proceedings Article | 13 July 2018 Presentation + Paper

Presentation + Paper

Phase A AO system design and performance for MOSAIC at the ELT

Timothy Morris, Alastair Basden, Ariadna Calcines-Rosario, Kjetil Dohlen, Cornelis Dubbeldam, Kacem El Hadi, Ewan Fitzsimons, Thierry Fusco, Éric Gendron, François Hammer, Pascal Jagourel, David Jenkins, Carine Morel, Simon Morris, Gérard Rousset, Matthew Townson, Pascal Vola, Edward Younger

Proceedings Volume 10703, 1070316 (2018) https://doi.org/10.1117/12.2313562

KEYWORDS: Adaptive optics, Calibration, Control systems, Tomography, Deformable mirrors, Error analysis

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Proceedings Article | 11 July 2018 Paper

Paper

Assembly, integration, test, and verification scenarios for the ELT MOSAIC instrument

K. El Hadi, K. Dohlen, D. Le Mignant, F. Madec, P. Vola, B. Neichel, T. Fusco, M. Ferrari, J. G. Cuby, E. Fitzsimons, M. Dubbeldam, T. Morris, F. Chemla, P. Jagourel, F. Hammer

Proceedings Volume 10702, 1070293 (2018) https://doi.org/10.1117/12.2312134

KEYWORDS: Adaptive optics, Telescopes, Spectrographs, Assembly equipment, Calibration, Mechanical engineering, Control systems, Integration

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Proceedings Article | 11 July 2018 Paper

Paper

MOSAIC: the ELT multi-object spectrograph

P. Jagourel, E. Fitzsimons, F. Hammer, F. De Frondat, M. Puech, C. Evans, R. Sanchez, I. Guinouard, F. Chemla, M. Frotin, Y. Yang, P. Parr-Burman, T. Morris, M. Dubbeldam, M. Close, K. Middleton, G. Rousset, É. Gendron, A. Kelz, A. Janssen, J. Pragt, R. Navarro, M. Larrieu, K. El Hadi, K. Dohlen, G. Dalton, I. Lewis, M. Rodrigues, S. Morris, L. Kaper, B. Barbuy, J-G. Cuby, Olivier Le Fèvre

Proceedings Volume 10702, 10702A4 (2018) https://doi.org/10.1117/12.2314135

KEYWORDS: Spectrographs, Near infrared, Adaptive optics, Visible radiation, Microlens, Astronomical imaging, Sensors, Mirrors, Relays, Spatial resolution

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Proceedings Article | 11 July 2018 Paper

Paper

Simulating surveys for ELT-MOSAIC: status of the MOSAIC science case after phase A

M. Puech, C. Evans, K. Disseau, J. Japelj, O. Ramírez-Agudelo, H. Rahmani, M. Trevisan, J. L. Wang, M. Rodrigues, R. Sánchez-Janssen, Y. Yang, F. Hammer, L. Kaper, S. Morris, B. Barbuy, J.-G. Cuby, G. Dalton, E. Fitzsimons, P. Jagourel

Proceedings Volume 10702, 107028R (2018) https://doi.org/10.1117/12.2311292

KEYWORDS: Spectroscopy, Telescopes, Spectrographs, Astronomy

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Proceedings Article | 10 July 2018 Paper

Paper

Product assurance for instrumental projects in research laboratory: galaxies, etoiles, physique, instrumentation (GEPI)

Fatima De Frondat Laadim, Pascal Jagourel, Mickael Frotin, François Hammer, Myriam Rodrigues, Mathieu Puech, Isabelle Guinouard, Fanny Chemla, Yanbin Yang, Ewan Fitzsimons, Phil Parr-Burman, Tim Morris, Marc Dubbeldam, Madeline Close, Kevin Middleton, Gerard Rousset, Andreas Kelz, Annemieke Janssen, Johan Pragt, Ramon Navarro, Marie Larrieu, Kacem El Hadi, Kjetil Dohlen, Gavin Dalton, Ian Lewis

Proceedings Volume 10705, 107051V (2018) https://doi.org/10.1117/12.2313247

KEYWORDS: Galactic astronomy, Analytical research, Aerospace engineering, Document management, Safety, Modeling, Reliability

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

The ELT-MOS (MOSAIC): towards the construction phase

Simon Morris, François Hammer, Pascal Jagourel, Christopher Evans, Mathieu Puech, Gavin Dalton, Myriam Rodrigues, Ruben Sanchez-Janssen, Ewan Fitzsimons, Beatriz Barbuy, Jean-Gabriel Cuby, Lex Kaper, Martin Roth, Gérard Rousset, Richard Myers, Olivier Le Fèvre, Alexis Finogenov, Jari Kotilainen, Bruno Castilho, Goran Ostlin, Sofia Feltzing, Andreas Korn, Jesus Gallego, África Castillo, Jorge Iglesias-Páramo, Laura Pentericci, Bodo Ziegler, Jose Afonso, Marc Dubbledam, Madeline Close, Phil Parr-Burman, Timothy Morris, Fanny Chemla, Fatima De Frondat, Andreas Kelz, Isabelle Guinouard, Ian Lewis, Kevin Middleton, Ramon Navarro, Marie Larrieu, Johan Pragt, Annemieke Janssen, Kjetil Dohlen, Kacem El Hadi, Éric Gendron, Yanbin Yang, Martyn Wells, Jean-Marc Conan, Thierry Fusco, Daniel Schaerer, Edwin Bergin, Sylvestre Taburet, Mickaël Frotin, Nadia Berkourn

Proceedings Volume 10702, 107021W (2018) https://doi.org/10.1117/12.2311430

KEYWORDS: Galactic astronomy, Spectrographs, Telescopes, Near infrared, Visible radiation, Astronomical imaging, Adaptive optics, Sensors, Astronomy, Physics

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Proceedings Article | 30 November 2016 Paper

Paper

Faint skylines in the near-infrared: observational constraint for IFU instruments

H. Flores, M. Rodrigues, M. Puech, Y. Yang, F. Hammer

Proceedings Volume 9908, 99082A (2016) https://doi.org/10.1117/12.2232088

KEYWORDS: Galactic astronomy, Near infrared, Spectrographs, Kinematics, Galactic astronomy, Kinematics, Spectral resolution, Infrared radiation, Calibration, Telescopes, Infrared spectroscopy, Stars

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Proceedings Article | 9 August 2016 Paper

Paper

Developing an integrated concept for the E-ELT Multi-Object Spectrograph (MOSAIC): design issues and trade-offs

Myriam Rodrigues, Gavin Dalton, Ewan Fitzsimons, Fanny Chemla, Tim Morris, Francois Hammer, Mathieu Puech, Christopher Evans, Pascal Jagourel

Proceedings Volume 9908, 99089S (2016) https://doi.org/10.1117/12.2232562

KEYWORDS: Astronomical imaging, Adaptive optics, Astronomical imaging, Spectrographs, Adaptive optics, Electroluminescent displays, Sensors, Telescopes, Near infrared, Cameras, Visible radiation, Laser guide stars

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Proceedings Article | 9 August 2016 Paper

Paper

The E-ELT multi-object spectrograph: latest news from MOSAIC

F. Hammer, S. Morris, L. Kaper, B. Barbuy, J. G. Cuby, M. Roth, P. Jagourel, C. Evans, M. Puech, E. Fitzsimons, G. Dalton, M. Rodrigues

Proceedings Volume 9908, 990824 (2016) https://doi.org/10.1117/12.2232427

KEYWORDS: Adaptive optics, Spectrographs, Telescopes, James Webb Space Telescope, Adaptive optics, Galactic astronomy, Molybdenum, K band, Space telescopes, Near infrared, Spectral resolution

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Proceedings Article | 9 August 2016 Paper

Paper

WEBSIM-COMPASS: a new generation scientific instrument simulator for the E-ELT

M. Puech, Y. Yang, I. Jégouzo, O. Marchal, K. Disseau, M. Paillous, M. Rodrigues, S. Taburet, Y. Clénet, D. Gratadour, H. Flores, F. Hammer

Proceedings Volume 9908, 99089P (2016) https://doi.org/10.1117/12.2232423

KEYWORDS: Device simulation, Device simulation, Point spread functions, Adaptive optics, Telescopes, Galactic astronomy, Aerospace engineering, Computer simulations, Spectroscopy, Space telescopes, Sensors

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Proceedings Article | 9 August 2016 Paper

Paper

Science requirements and trade-offs for the MOSAIC instrument for the European ELT

C. Evans, M. Puech, M. Rodrigues, B. Barbuy, J.-G. Cuby, G. Dalton, E. Fitzsimons, F. Hammer, P. Jagourel, L. Kaper, S. Morris, T. Morris

Proceedings Volume 9908, 99089J (2016) https://doi.org/10.1117/12.2231675

KEYWORDS: Space telescopes, Spectrographs, Spectroscopes, Telescopes, Galactic astronomy, K band, Spectral resolution, James Webb Space Telescope, Visible radiation, Sensors

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Proceedings Article | 26 July 2016 Paper

Paper

Adaptive optics for MOSAIC: design and performance of the wide(st)-field AO system for the E-ELT

Tim Morris, Alastair Basden, Tristan Buey, Fanny Chemla, Jean-Marc Conan, Ewan Fitzsimons, Thierry Fusco, Eric Gendron, Francois Hammer, Pascal Jagourel, Carine Morel, Richard Myers, Benoit Neichel, Cyril Petit, Myriam Rodrigues, Gérard Rousset

Proceedings Volume 9909, 99091I (2016) https://doi.org/10.1117/12.2232411

KEYWORDS: Adaptive optics, Tomography, Optical design, Spectrographs, Telescopes, Near infrared, Optical design, Wavefronts, Monte Carlo methods, Device simulation, Stars

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Proceedings Article | 4 August 2014 Paper

Paper

COMPASS: an efficient, scalable and versatile numerical platform for the development of ELT AO systems

D. Gratadour, M. Puech, C. Vérinaud, P. Kestener, M. Gray, C. Petit, J. Brulé, Y. Clénet, F. Ferreira, E. Gendron, M. Lainé, A. Sevin, G. Rousset, F. Hammer, I. Jégouzo, Michele Paillous, S. Taburet, Y. Yang, J.-L. Beuzit, A. Carlotti, M. Westphal, B. Epinat, M. Ferrari, T. Gautrais, J. Lambert, B. Neichel, S. Rodionov

Proceedings Volume 9148, 91486O (2014) https://doi.org/10.1117/12.2056358

KEYWORDS: Adaptive optics, Computer simulations, Device simulation, Data acquisition, Instrument modeling, Systems modeling, Interfaces, Prototyping, Data modeling, Sensors

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Proceedings Article | 28 July 2014 Paper

Paper

Simulations of high-z galaxy observations with an ELT-MOS

Karen Disseau, Mathieu Puech, Hector Flores, François Hammer, Yanbin Yang, Laura Pentericci

Proceedings Volume 9147, 914791 (2014) https://doi.org/10.1117/12.2055161

KEYWORDS: Galactic astronomy, Signal to noise ratio, Point spread functions, Ultraviolet radiation, Device simulation, Telescopes, Adaptive optics, Lanthanum, Ultraviolet detectors, Absorption

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Proceedings Article | 28 July 2014 Paper

Paper

Science case and requirements for the MOSAIC concept for a multi-object spectrograph for the European Extremely Large Telescope

C. Evans, M. Puech, B. Barbuy, P. Bonifacio, J.-G. Cuby, E. Guenther, F. Hammer, P. Jagourel, L. Kaper, S. Morris, J. Afonso, P. Amram, H. Aussel, A. Basden, N. Bastian, G. Battaglia, B. Biller, N. Bouché, E. Caffau, S. Charlot, Y. Clénet, F. Combes, C. Conselice, T. Contini, G. Dalton, B. Davies, K. Disseau, J. Dunlop, F. Fiore, H. Flores, T. Fusco, D. Gadotti, A. Gallazzi, E. Giallongo, T. Gonçalves, D. Gratadour, V. Hill, M. Huertas-Company, R. Ibata, S. Larsen, O. Le Fèvre, B. Lemasle, C. Maraston, S. Mei, Y. Mellier, G. Östlin, T. Paumard, R. Pello, L. Pentericci, P. Petitjean, M. Roth, D. Rouan, D. Schaerer, E. Telles, S. Trager, N. Welikala, S. Zibetti, B. Ziegler

Proceedings Volume 9147, 914796 (2014) https://doi.org/10.1117/12.2055857

KEYWORDS: Stars, Galactic astronomy, Planets, Spectroscopy, Spectrographs, Molybdenum, Adaptive optics, Telescopes, Galaxy evolution, Astronomical imaging

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Proceedings Article | 28 July 2014 Paper

Paper

Sky background subtraction with fiber-fed spectrographs

M. Puech, M. Rodrigues, Y. Yang, H. Flores, F. Royer, K. Disseau, T. Gonçalves, F. Hammer, M. Cirasuolo, C. Evans, G. Li Causi, R. Maiolino, C. Melo

Proceedings Volume 9147, 91476L (2014) https://doi.org/10.1117/12.2055137

KEYWORDS: Spectrographs, Switching, Light scattering, Signal to noise ratio, Absorption, Optical fibers, Error analysis, Observatories, Astronomy, Signal processing

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Proceedings Article | 28 July 2014 Paper

Paper

MOSAIC at the E-ELT: A multi-object spectrograph for astrophysics, IGM and cosmology

F. Hammer, B. Barbuy, J. Cuby, L. Kaper, S. Morris, C. Evans, P. Jagourel, G. Dalton, P. Rees, M. Puech, M. Rodrigues, D. Pearson, K. Disseau

Proceedings Volume 9147, 914727 (2014) https://doi.org/10.1117/12.2055148

KEYWORDS: Galactic astronomy, Molybdenum, James Webb Space Telescope, Spectrographs, Space telescopes, Telescopes, Stars, Spectral resolution, Physics, Adaptive optics

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The Universe is comprised of hundreds of billions of galaxies, each populated by hundreds of billions of stars. Astrophysics aims to understand the complexity of this almost incommensurable number of stars, stellar clusters and galaxies, including their spatial distribution, formation, and current interactions with the interstellar and intergalactic media. A considerable fraction of astrophysical discoveries require large statistical samples, which can only be addressed with multi-object spectrographs (MOS). Here we introduce the MOSAIC study of an optical/near-infrared MOS for the European Extremely Large Telescope (E-ELT), which has capabilities specified by science cases ranging from stellar physics and exoplanet studies to galaxy evolution and cosmology. Recent studies of critical technical issues such as sky-background subtraction and multi-object adaptive optics (MOAO) have demonstrated that such a MOS is feasible with current technology and techniques. In the 2020s the E-ELT will become the world’s largest optical/IR telescope, and we argue that it has to be equipped as soon as possible with a MOS. MOSAIC will provide a vast discovery space, enabled by a multiplex of ∼ 200 and spectral resolving powers of R = 5 000 and 20 000. MOSAIC will also offer the unique capability of 10-to-20 ‘high-definition’ (MOAO) integral-field units, optimised to investigate the physics of the sources of reionisation, providing the most efficient follow-up of observations with the James Webb Space Telescope (JWST). The combination of these modes will enable the study of the mass-assembly history of galaxies over cosmic time, including high-redshift dwarf galaxies and studies of the distribution of the intergalactic medium. It will also provide spectroscopy of resolved stars in external galaxies at unprecedented distances, from the outskirts of the Local Group for main-sequence stars, to a significant volume of the local Universe, including nearby galaxy clusters, for luminous red supergiants.

Proceedings Article | 8 July 2014 Paper

Paper

MOONS: the Multi-Object Optical and Near-infrared Spectrograph for the VLT

M. Cirasuolo, J. Afonso, M. Carollo, H. Flores, R. Maiolino, E. Oliva, S. Paltani, Leonardo Vanzi, Christopher Evans, M. Abreu, David Atkinson, C. Babusiaux, Steven Beard, F. Bauer, M. Bellazzini, Ralf Bender, P. Best, N. Bezawada, P. Bonifacio, A. Bragaglia, I. Bryson, D. Busher, A. Cabral, K. Caputi, M. Centrone, F. Chemla, A. Cimatti, M-R. Cioni, G. Clementini, J. Coelho, D. Crnojevic, E. Daddi, J. Dunlop, S. Eales, S. Feltzing, A. Ferguson, M. Fisher, A. Fontana, J. Fynbo, B. Garilli, G. Gilmore, A. Glauser, I. Guinouard, F. Hammer, P. Hastings, A. Hess, R. Ivison, P. Jagourel, M. Jarvis, L. Kaper, G. Kauffman, A. Kitching, A. Lawrence, D. Lee, B. Lemasle, G. Licausi, S. Lilly, D. Lorenzetti, D. Lunney, F. Mannucci, R. McLure, D. Minniti, D. Montgomery, B. Muschielok, K. Nandra, R. Navarro, P. Norberg, S. Oliver, L. Origlia, N. Padilla, J. Peacock, F. Pedichini, J. Peng, L. Pentericci, J. Pragt, M. Puech, S. Randich, P. Rees, A. Renzini, N. Ryde, M. Rodrigues, I. Roseboom, F. Royer, R. Saglia, A. Sanchez, R. Schiavon, H. Schnetler, D. Sobral, R. Speziali, D. Sun, R. Stuik, A. Taylor, W. Taylor, S. Todd, E. Tolstoy, M. Torres, M. Tosi, E. Vanzella, L. Venema, F. Vitali, M. Wegner, M. Wells, V. Wild, G. Wright, G. Zamorani, M. Zoccali

Proceedings Volume 9147, 91470N (2014) https://doi.org/10.1117/12.2056012

KEYWORDS: Galactic astronomy, Spectrographs, Stars, Spectral resolution, Spectroscopy, Astronomical imaging, Sensors, Cameras, Control systems, Astronomy

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Proceedings Article | 24 September 2012 Paper

Paper

Variation of the near-IR sky continuum background from long-slit spectroscopy

Y. B. Yang, M. Puech, H. Flores, F. Hammer, M. Rodrigues, K. Disseau

Proceedings Volume 8446, 84467Q (2012) https://doi.org/10.1117/12.925945

KEYWORDS: Data archive systems, Spectroscopy, Near infrared spectroscopy, Statistical analysis, Galactic astronomy, Stars, Signal detection, Astronomy, Observatories, Telescopes

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Proceedings Article | 24 September 2012 Paper

Paper

MOONS: a multi-object optical and near-infrared spectrograph for the VLT

M. Cirasuolo, J. Afonso, R. Bender, P. Bonifacio, C. Evans, L. Kaper, Ernesto Oliva, Leonardo Vanzi, Manuel Abreu, Eli Atad-Ettedgui, Carine Babusiaux, Franz Bauer, Philip Best, Naidu Bezawada, Ian Bryson, Alexandre Cabral, Karina Caputi, Mauro Centrone, Fanny Chemla, Andrea Cimatti, Maria-Rosa Cioni, Gisella Clementini, João Coelho, Emanuele Daddi, James Dunlop, Sofia Feltzing, Annette Ferguson, Hector Flores, Adriano Fontana, Johan Fynbo, Bianca Garilli, Adrian Glauser, Isabelle Guinouard, Jean-François Hammer, Peter Hastings, Hans-Joachim Hess, Rob Ivison, Pascal Jagourel, Matt Jarvis, G. Kauffman, A. Lawrence, D. Lee, G. Li Causi, S. Lilly, D. Lorenzetti, R. Maiolino, F. Mannucci, R. McLure, D. Minniti, D. Montgomery, B. Muschielok, K. Nandra, R. Navarro, P. Norberg, L. Origlia, N. Padilla, J. Peacock, F. Pedicini, L. Pentericci, J. Pragt, M. Puech, S. Randich, A. Renzini, N. Ryde, M. Rodrigues, F. Royer, R. Saglia, A. Sánchez, H. Schnetler, D. Sobral, R. Speziali, S. Todd, E. Tolstoy, M. Torres, L. Venema, F. Vitali, M. Wegner, M. Wells, V. Wild, G. Wright

Proceedings Volume 8446, 84460S (2012) https://doi.org/10.1117/12.925871

KEYWORDS: Galactic astronomy, Spectrographs, Spectral resolution, Spectroscopy, Stars, Astronomical imaging, Astronomy, Near infrared spectroscopy, Spine, Optical fibers

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Proceedings Article | 24 September 2012 Paper

Paper

Characterizing the red optical sky background fluctuations from narrow-band imaging

M. Puech, H. Flores, Y. Yang, M. Rodrigues, T. Gonçalves, F. Hammer, K. Disseau

Proceedings Volume 8446, 84467L (2012) https://doi.org/10.1117/12.925897

KEYWORDS: Fringe analysis, Galactic astronomy, Spectrographs, Data archive systems, Light scattering, Signal to noise ratio, Visualization, Data modeling, Image quality, Large telescopes

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Proceedings Article | 24 September 2012 Paper

Paper

Multi-object spectroscopy with the European ELT: scientific synergies between EAGLE and EVE

C. Evans, B. Barbuy, P. Bonifacio, F. Chemla, J.-G. Cuby, G. Dalton, Ben Davies, Karen Disseau, K. Dohlen, H. Flores, E. Gendron, I. Guinouard, F. Hammer, P. Hastings, D. Horville, P. Jagourel, L. Kaper, P. Laporte, D. Lee, S. Morris, T. Morris, R. Myers, R. Navarro, P. Parr-Burman, P. Petitjean, M. Puech, Emmanuel Rollinde, G. Rousset, H. Schnetler, N. Welikala, M. Wells, Y. Yang

Proceedings Volume 8446, 84467K (2012) https://doi.org/10.1117/12.924819

KEYWORDS: Galactic astronomy, Stars, Molybdenum, Adaptive optics, Spectroscopy, Spectrographs, Telescopes, Spectroscopes, Spatial resolution, Spectral resolution

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Proceedings Article | 13 September 2012 Paper

Paper

Development of different kind of IFU prototypes for the OPTIMOS-EVE study for the E-ELT

Isabelle Guinouard, Ligia Souza de Oliviera, Antonio César de Oliveira, François Hammer, Marc Huertas-Company, Beatriz Barbuy, Fanny Chemla, Jean-Michel Huet, Hector Flores, Mathieu Puech, Simona Mei

Proceedings Volume 8450, 84503G (2012) https://doi.org/10.1117/12.924812

KEYWORDS: Microlens array, Prototyping, Composites, Optical fibers, Polishing, Spectral resolution, Spectrographs, Ultraviolet radiation, Epoxies, Diamond

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Proceedings Article | 13 September 2012 Paper

Paper

On-sky tests of sky-subtraction methods for fiber-fed spectrographs

Myriam Rodrigues, M. Cirasuolo, F. Hammer, F. Royer, C. Evans, M. Puech, H. Flores, I. Guinouard, Gianluca Li Causi, K. Disseau, Y. Yang

Proceedings Volume 8450, 84503H (2012) https://doi.org/10.1117/12.924878

KEYWORDS: Spectrographs, Switching, Galactic astronomy, Observatories, Astronomy, Astronomical imaging, Wavelets, Light scattering, Telescopes, Lithium

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Proceedings Article | 21 July 2010 Paper

Paper

OPTIMOS-EVE design trade-off analysis

Fanny Chemla, Gavin Dalton, Isabelle Guinouard, Johannes Pragt, Eric Sawyer, Paolo Spanò, Ian Tosh, Michael Andersen, Ramon Navarro, François Hammer, Lex Kaper

Proceedings Volume 7735, 77355L (2010) https://doi.org/10.1117/12.857519

KEYWORDS: Spectrographs, Microlens, Molybdenum, Cameras, Lawrencium, Sensors, Spectral resolution, Near infrared, Visible radiation, Lithium

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Proceedings Article | 20 July 2010 Paper

Paper

Development of five multifibre links for the OPTIMOS-EVE study for the E-ELT

Isabelle Guinouard, Fanny Chemla, Hector Flores, Jean-Michel Huet, François Hammer, Gerben Wulterkens

Proceedings Volume 7739, 773944 (2010) https://doi.org/10.1117/12.856232

KEYWORDS: Spectrographs, Spectral resolution, Calibration, Molybdenum, Microlens, Optical fibers, Telescopes, Lawrencium, Near infrared spectroscopy, Spectroscopy

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Proceedings Article | 15 July 2010 Paper

Paper

Project overview of OPTIMOS-EVE: the fibre-fed multi-object spectrograph for the E-ELT

Ramón Navarro, Fanny Chemla, Piercarlo Bonifacio, Hector Flores, Isabelle Guinouard, Jean-Michel Huet, Mathieu Puech, Frédéric Royer, Johannes Pragt, Gerben Wulterkens, Eric Sawyer, Martin Caldwell, Ian A. Tosh, Martin Whalley, Guy F. Woodhouse, Paolo Spanò, Paolo Di Marcantonio, Michael Andersen, Gavin Dalton, Lex Kaper, François Hammer

Proceedings Volume 7735, 77352L (2010) https://doi.org/10.1117/12.857638

KEYWORDS: Spectrographs, Galactic astronomy, Spectral resolution, Telescopes, Stars, Near infrared, Astronomical imaging, Planets, Sensors, Spectroscopes

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Proceedings Article | 15 July 2010 Paper

Paper

Performances of X-shooter, the new wide-band intermediate resolution spectrograph at the VLT

J. Vernet, H. Dekker, S. D'Odorico, E. Mason, P. Di Marcantonio, M. Downing, E. Elswijk, G. Finger, G. Fischer, F. Kerber, L. Kern, J.-L. Lizon, C. Lucuix, V. Mainieri, A. Modigliani, F. Patat, S. Ramsay, P. Santin, M. Vidali, P. Groot, I. Guinouard, F. Hammer, L. Kaper, P. Kjærgaard-Rasmussen, R. Navarro, S. Randich, F. Zerbi

Proceedings Volume 7735, 77351I (2010) https://doi.org/10.1117/12.857124

KEYWORDS: Lamps, Near infrared, Spectrographs, Camera shutters, Calibration, Mirrors, CCD cameras, Ultraviolet radiation, Telescopes, Image quality

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Proceedings Article | 12 July 2008 Paper

Paper

Building up a database of spectro-photometric standard stars from the UV to the near-IR: a status report

J. Vernet, F. Kerber, F. Saitta, V. Mainieri, S. D'Odorico, C. Lidman, E. Mason, R. Bohlin, T. Rauch, V. D. Ivanov, A. Smette, J. R. Walsh, R. Fosbury, P. Goldoni, P. Groot, F. Hammer, M. Horrobin, L. Kaper, P. Kjaergaard-Rasmussen, R. Pallavicini, F. Royer

Proceedings Volume 7016, 70161G (2008) https://doi.org/10.1117/12.788676

KEYWORDS: Stars, Atmospheric modeling, Calibration, Observatories, Ultraviolet radiation, Data modeling, Spectrographs, Absorption, Hydrogen, Point spread functions

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Proceedings Article | 9 July 2008 Paper

Paper

Modeling of a large deformable mirror for future E-ELT

R. Gasmi, J. C. Sinquin, P. Jagourel, J. L. Dournaux, D. Le Bihan, F. Hammer

Proceedings Volume 7017, 70171Z (2008) https://doi.org/10.1117/12.802346

KEYWORDS: Actuators, Mirrors, Prototyping, Chemical elements, Deformable mirrors, Telescopes, Modal analysis, Adaptive optics, Optical components, Atmospheric optics

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Proceedings Article | 6 July 2006 Paper

Paper

An integral field unit for X-shooter

Isabelle Guinouard, David Horville, Mathieu Puech, François Hammer, Jean-Philippe Amans, Fanny Chemla, Hans Dekker, Ruben Mazzoleni

Proceedings Volume 6273, 62733R (2006) https://doi.org/10.1117/12.670242

KEYWORDS: Mirrors, Spectrographs, Spherical lenses, Interfaces, Telescopes, Distortion, Titanium, Gamma radiation, Spectral resolution, Spectroscopes

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Proceedings Article | 30 June 2006 Paper

Paper

X-shooter UV- to K-band intermediate-resolution high-efficiency spectrograph for the VLT: status report at the final design review

Sandro D'Odorico, Hans Dekker, Ruben Mazzoleni, Joel Vernet, Isabelle Guinouard, Paul Groot, Francois Hammer, Per Kjaergaard Rasmussen, Lex Kaper, Ramon Navarro, Roberto Pallavicini, Celine Peroux, Filippo Maria Zerbi

Proceedings Volume 6269, 626933 (2006) https://doi.org/10.1117/12.672969

KEYWORDS: Spectrographs, Sensors, Calibration, Near infrared, Telescopes, Mirrors, K band, Cameras, Astronomy, Stars

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Proceedings Article | 30 June 2006 Paper

Paper

Wide field spectrograph concepts for the European Extremely Large Telescope

G. Moretto, R. Bacon, J.-G. Cuby, F. Hammer, Philippe Amram, S. Blais-Ouellette, P.-E. Blanc, J. Devriendt, B. Epinat, T. Fusco, P. Jagourel, O. Hernandez, J.-P. Kneib, I. Montilla, B. Neichel, E. Pécontal, E. Prieto, M. Puech

Proceedings Volume 6269, 62692G (2006) https://doi.org/10.1117/12.671548

KEYWORDS: Tunable filters, Galactic astronomy, Spectrographs, Spectral resolution, Telescopes, Large telescopes, Adaptive optics, Holography, Optical filters, Space telescopes

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Proceedings Article | 29 June 2006 Paper

Paper

ELT instrument concepts: impact on telescope and adaptive optics design

Colin Cunningham, Eli Atad-Ettadgui, Roland Bacon, Bernhard Brandl, Jean-Gabriel Cuby, Gavin Dalton, William Dent, Sandro D'Odorico, Ian Egan, Chris Evans, Francois Hammer, Norbert Hubin, Pascal Jagourel, Marcus Kasper, Florian Kerber, Rainer Lenzen, Iciar Montilla, Gil Moretto, Simon Morris, Luca Pasquini, Eric Prieto, Andreas Quirrenbach, Michael Redfern, Oliver Ryan, Mel Strachan, Christophe Verinaud

Proceedings Volume 6269, 62691R (2006) https://doi.org/10.1117/12.671274

KEYWORDS: Telescopes, Adaptive optics, Galactic astronomy, Spectrographs, Imaging spectroscopy, Spectroscopy, Imaging systems, Mirrors, Planets, Space telescopes

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Proceedings Article | 28 June 2006 Paper

Paper

ELTs adaptive optics for multi-objects 3D spectroscopy: key parameters and design rules

B. Neichel, J.-M. Conan, T. Fusco, E. Gendron, M. Puech, G. Rousset, F. Hammer

Proceedings Volume 6272, 62721X (2006) https://doi.org/10.1117/12.671415

KEYWORDS: Adaptive optics, Stars, Galactic astronomy, Tomography, Spatial resolution, Turbulence, Point spread functions, Telescopes, Actuators, Spectroscopy

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Proceedings Article | 27 June 2006 Paper

Paper

New micro-lithography techniques for the manufacture of wavefront sensors for the FALCON concept: ADONF

F. Chemla, E. Gendron, P. Laporte, I. Guinouard, F. Cornu, M. Puech, F. Hammer, P. Jagourel

Proceedings Volume 6272, 62724F (2006) https://doi.org/10.1117/12.669790

KEYWORDS: Optical fibers, Manufacturing, Wavefront sensors, Microlens, Adaptive optics, Microlens array, Sensors, Photoresist materials, Galactic astronomy, Mirrors

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Proceedings Article | 6 October 2005 Paper

Paper

Deformable mirrors for the FALCON concept

M. Puech, F. Chemla, P. Laporte, P. Jagourel, E. Gendron, F. Hammer, F. Assemat, J.-M. Conan, T. Fusco, A. Liotard, F. Zamkotsian

Proceedings Volume 5903, 59030V (2005) https://doi.org/10.1117/12.613172

KEYWORDS: Mirrors, Adaptive optics, Actuators, Deformable mirrors, Wavefronts, Galactic astronomy, Wavefront sensors, Tomography, Stars, Turbulence

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Proceedings Article | 30 September 2004 Paper

Paper

X-shooter: UV-to-IR intermediate-resolution high-efficiency spectrograph for the ESO VLT

Sandro D'Odorico, Michael Andersen, Paolo Conconi, Vincenzo De Caprio, Bernard Delabre, Paolo Di Marcantonio, Hans Dekker, Mark Downing, Gert Finger, Paul Groot, Hiddo Hanenburg, Francois Hammer, David Horville, Jens Hjorth, Lex Kaper, Jens Klougart, Per Kjaergaard-Rasmussen, Jean-Louis Lizon, Michel Marteaud, Ruben Mazzoleni, Niels Michaelsen, Roberto Pallavicini, Florence Rigal, Paolo Santin, Anton Norup Soerensen, Paolo Spano, Lars Venema, Pascal Vola, Filippo Zerbi

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550005

KEYWORDS: Spectrographs, Ultraviolet radiation, Cameras, Sensors, Prisms, Visualization, Telescopes, Charge-coupled devices, Mirrors, Calibration

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Proceedings Article | 7 July 2004 Paper

Paper

FALCON: a concept to extend adaptive optics corrections to cosmological fields

Francois Hammer, Mathieu Puech, Francois Assemat, Eric Gendron, Frederic Sayede, Philippe Laporte, Michel Marteaud, Arnaud Liotard, Frederic Zamkotsian

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566386

KEYWORDS: Galactic astronomy, Adaptive optics, Stars, Telescopes, Spatial resolution, Optical calibration, Tomography, Zernike polynomials, Spectrographs, Wavefront sensors

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Proceedings Article | 7 July 2004 Paper

Paper

A concept for a thirty-meter telescope

Denis Burgarella, Frederic Zamkotsian, Kjetil Dohlen, Marc Ferrari, Francois Hammer, Frederic Sayede, Francois Rigaud

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566119

KEYWORDS: Telescopes, Adaptive optics, Galactic astronomy, Spatial resolution, Astronomy, Imaging spectroscopy, Large telescopes, Mirrors, Image quality, Photons

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Proceedings Article | 6 February 2004 Paper

Paper

FALCON: a new-generation spectrograph with adaptive optics for the ESO VLT

Francois Assemat, Francois Hammer, Eric Gendron, Frederic Sayede, Philippe Laporte, Michel Marteaud, Mathieu Puech, Jean-Marc Conan, Thierry Fusco, A. Liotard, Frederic Zamkotskian

Proceedings Volume 5237, (2004) https://doi.org/10.1117/12.514034

KEYWORDS: Adaptive optics, Galactic astronomy, Stars, Spectrographs, Spatial resolution, Spectroscopy, Tomography, Signal to noise ratio, Zernike polynomials, Microlens

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Proceedings Article | 30 January 2003 Paper

Paper

Large petal telescope for the next-generation Canada-France-Hawaii Telescope

Denis Burgarella, Kjetil Dohlen, Marc Ferrari, Frederic Zamkotsian, Francois Hammer, Frederic Sayede, Francois Rigaud

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.458071

KEYWORDS: Telescopes, Mirrors, Galactic astronomy, Adaptive optics, Space telescopes, Stars, Spatial resolution, Diffraction, Imaging spectroscopy, Spectroscopy

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Proceedings Article | 16 August 2000 Paper

Paper

Development of four multifiber links for the FLAMES project

Laurent Jocou, Isabelle Guinouard, Francois Hammer, Hugo Lenoir

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395508

KEYWORDS: Spectrographs, Calibration, Microlens, Fiber couplers, Prototyping, Galactic astronomy, Magnetism, Stars, Microlens array, Head

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Showing 5 of 44 publications

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