Dr. Gilles Duvert Profile

Dr. Gilles Duvert

Senior Astronomer at IPAG

SPIE Involvement:

Author

Publications (41)

Proceedings Article | 26 August 2022 Presentation + Paper

IMAGE-OI: an OIFITS extension and its application in OImaging to compare image reconstruction algorithms

Férréol Soulez, Laurent Bourgès, Antoine Kaszczyc, Guillaume Mella, Martin Pratoussy, Gilles Duvert, Jacques Kluska, Eric Thiébaut, John Young

Proceedings Volume 12183, 121831H (2022) https://doi.org/10.1117/12.2630251

KEYWORDS: Reconstruction algorithms, Image restoration, Data modeling, Binary data, Visibility, Image processing, Human-machine interfaces, Visualization, Interferometry, Algorithm development

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Proceedings Article | 16 December 2020 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 | 9 August 2016 Paper

The orbit of the mercury-manganese binary 41 Eridani

Christian Hummel, Markus Schöller, Gilles Duvert, Jean-Baptiste Le Bouquin, Swetlana Hubrig

Proceedings Volume 9907, 99070Q (2016) https://doi.org/10.1117/12.2231859

KEYWORDS: Stars, Interferometry, Mercury, Manganese, Spectroscopy, Calibration, Visibility, Near infrared spectroscopy, Surface conduction electron emitter displays, Photometry

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Proceedings Article | 8 August 2016 Paper

Effective a posteriori co-phasing of interferometric fringe data

Antony Schutz, Éric Thiébaut, Ferréol Soulez, Michel Tallon, Gilles Duvert, Isabelle Tallon-Bosc

Proceedings Volume 9907, 99073D (2016) https://doi.org/10.1117/12.2232915

KEYWORDS: Interferometry, Colorimetry, Turbulence, Signal to noise ratio, Visibility, Phase shifts, Phase measurement, Error analysis, Calibration, Affine motion model

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Proceedings Article | 4 August 2016 Paper

ASPRO2: get ready for VLTI's instruments GRAVITY and MATISSE

L. Bourgès, G. Duvert

Proceedings Volume 9907, 990711 (2016) https://doi.org/10.1117/12.2234426

KEYWORDS: Interferometry, Interferometers, Instrument modeling, Visibility, Calibration, Ultraviolet radiation, Telescopes, Photons, Modeling, Sensors

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Proceedings Article | 4 August 2016 Paper

User-friendly imaging algorithms for interferometry

John Young, Éric Thiébaut, Gilles Duvert, Martin Vannier, Paulo Garcia, Guillaume Mella

Proceedings Volume 9907, 99073N (2016) https://doi.org/10.1117/12.2233381

KEYWORDS: Reconstruction algorithms, Image restoration, Interferometry, Algorithm development, Human-machine interfaces, Image processing, Data modeling, Detection and tracking algorithms, Prototyping, Optical interferometry

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Proceedings Article | 26 July 2016 Paper

First year report of the Optical Interferometry DataBase

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

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

OIFITS version 2: the new standard for optical/IR interferometry data exchange

Gilles Duvert, John Young, Christian Hummel

Proceedings Volume 9907, 990710 (2016) https://doi.org/10.1117/12.2231492

KEYWORDS: Interferometry, Optical interferometry, Interferometers, Observatories, Calibration, Visibility, Polarization, Telescopes, Binary data, Infrared radiation

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Proceedings Article | 24 July 2014 Paper

A global database for optical interferometry

Xavier Haubois, Patrick Bernaud, Guillaume Mella, Gilles Duvert, Myriam Benisty, Philippe Bério, Laurent Bourges, Alain Chelli, Olivier Chesneau, Sylvestre Lacour, Sylvain Lafrasse, Jean-Baptiste Le Bouquin, Denis Mourard, Nicolas Nardetto, Johan Olofsson

Proceedings Volume 9146, 91460O (2014) https://doi.org/10.1117/12.2056977

KEYWORDS: Databases, Optical interferometry, Calibration, Data modeling, Interferometry, Observatories, Optical calibration, Diffusion, Modeling, Prototyping

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Proceedings Article | 24 July 2014 Paper

A robust approach to estimate stellar angular diameters from photometry and spectral type

A. Chelli, L. Bourges, G. Duvert, S. Lafrasse, G. Mella, J.-B. Le Bouquin, O. Chesneau

Proceedings Volume 9146, 91462Z (2014) https://doi.org/10.1117/12.2056858

KEYWORDS: Stars, Databases, Photometry, Calibration, Error analysis, Interferometry, Cadmium sulfide, Visualization, Infrared radiation, Optical calibration

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Proceedings Article | 24 July 2014 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 | 12 September 2012 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 | 2 August 2010 Paper

Phase closure nulling: results from the 2009 campaign

Gilles Duvert, Fabien Malbet, Alain Chelli, Rafael Millan-Gabet, John Monnier, Gail Schaefer

Proceedings Volume 7734, 77340U (2010) https://doi.org/10.1117/12.857970

KEYWORDS: Stars, Visibility, Calibration, Spectroscopy, Polarizers, Spatial frequencies, Bessel functions, Interferometers, Interferometry, Binary data

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Proceedings Article | 2 August 2010 Paper

The third version of the AMBER data reduction software

Fabien Malbet, Gilles Duvert, Florentin Millour, Jean-Baptiste Le Bouquin, Guillaume Mella, Luc Halipré, Alain Chelli, Sylvain Lafrasse, Evelyne Altariba, Gérard Zins

Proceedings Volume 7734, 77344C (2010) https://doi.org/10.1117/12.857527

KEYWORDS: Calibration, Visibility, Astatine, Data modeling, Stars, Interferometry, Human-machine interfaces, Signal to noise ratio, Process control, Sensors

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Proceedings Article | 2 August 2010 Paper

The 2010 interferometric imaging beauty contest

Fabien Malbet, William Cotton, Gilles Duvert, Peter Lawson, Andrea Chiavassa, John Young, Fabien Baron, David Buscher, Sridharan Rengaswamy, Brian Kloppenborg, Martin Vannier, Laurent Mugnier

Proceedings Volume 7734, 77342N (2010) https://doi.org/10.1117/12.857066

KEYWORDS: Interferometry, Data modeling, Reconstruction algorithms, Image restoration, Stars, Spectral resolution, Visibility, Image resolution, Software development, Interferometers

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Proceedings Article | 2 August 2010 Paper

Building the 'JMMC Stellar Diameters Catalog' using SearchCal

Sylvain Lafrasse, Guillaume Mella, Daniel Bonneau, Gilles Duvert, Xavier Delfosse, Olivier Chesneau, Alain Chelli

Proceedings Volume 7734, 77344E (2010) https://doi.org/10.1117/12.857024

KEYWORDS: Stars, Calibration, Cadmium sulfide, K band, Interferometry, Error analysis, Observatories, Databases, Optical interferometry, Statistical analysis

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Proceedings Article | 28 July 2008 Paper

Science case for 1 mas spectro-imagining in the near-infrared

Paulo Garcia, Jean-Philippe Berger, Alessandro Marconi, Alexander Krivov, Andrea Chiavassa, Bernard Aringer, Brunella Nisini, Denis Defrére, Dimitri Mawet, Dieter Schertl, Eric Tatuli, Eric Thiébaut, Fabien Baron, Fabien Malbet, Gaspard Duchéne, Gerd Weigelt, Gilles Duvert, Gilles Henri, Hubert Klahr, Jean Surdej, Jean-Charles Augereau, Jean-François Claeskens, John Young, Josef Hron, Karine Perraut, Karl-Heinz Hofmann, Leonardo Testi, Margarida Cunha, Mercedes Filho, Michaël De Becker, Olivier Absil, Olivier Chesneau, Pierre Collette, Pierre-Olivier Petrucci, Ralph Neuhaeuser, Romano Corradi, Sónia Antón, Sebastian Wolf, Sebastian Hoenig, Stephanie Renard, Thierry Forveille, Thomas Beckert, Thomas Lebzelter, Tim Harries, Virginie Borkowski, Xavier Bonfils

Proceedings Volume 7013, 70134N (2008) https://doi.org/10.1117/12.789216

KEYWORDS: Stars, Telescopes, Spatial resolution, Planets, Galactic astronomy, Adaptive optics, Spectral resolution, Visibility, Interferometry, High dynamic range imaging

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We present the work developed within the science team of the Very Large Telescope Interferometer Spectro-Imager (VSI) during the Phase A studies. VSI aims at delivering ~ 1 milliarcsecond resolution data cubes in the near-infrared, with several spectral resolutions up to 12 000, by combining up to 8 VLTI telescopes. In the design of an instrument, the science case plays a central role by supporting the instrument construction decision, defining the top-level requirements and balancing design options. The overall science philosophy of VSI was that of a general user instrument serving a broad community. The science team addressed themes which included several areas of astrophysics and illustrated specific modes of operation of the instrument: a) YSO disks and winds; b) Multiplicity of young stars; c) Exoplanets; d) Debris disks; e) Stellar surface imaging; f) The environments of evolved stars; g) AGN tori; h) AGN's Broad Line Region; i) Supermassive black-holes; and j) Microlensing. The main conclusions can be summarized as follows: a) The accessible targets and related science are extremely sensitive to the instrument limiting magnitude; the instrument should be optimized for sensitivity and have its own fringe tracker. b) Most of the science cases are readily achievable with on-axis fringe tracking, off-axis fringe tracking enabling extra science. c) In most targets (YSOs, evolved stars and AGNs), the interpretation and analysis of circumstellar/nuclear dust morphology requires direct access to the gas via spectral resolved studies of emission lines, requiring at least a spectral resolution of 2 500. d) To routinely deliver images at the required sensitivity, the number of telescopes in determinant, with 6 telescopes being favored. e) The factorial increase in the number of closure phases and visibilities, gained in a single observation, makes massive surveys of parameters and related science for the first time possible. f) High dynamic range imaging and very high dynamic range differential closure phase are possible allowing the study of debris disks and characterization of pegasides. g) Spectro-imaging in the near-infrared is highly complementary to ALMA, adaptive optics and interferometric imaging in the thermal infrared.

Proceedings Article | 28 July 2008 Paper

Phase closure image reconstruction for future VLTI instrumentation

Mercedes Filho, Stephanie Renard, Paulo Garcia, Gilles Duvert, Eric Thiebaut, John Young, Olivier Absil, Jean-Phillipe Berger, Thomas Beckert, Sebastian Hoenig, Dieter Schertl, Gerd Weigelt, Leonardo Testi, Eric Tatuli, Virginie Borkowski, Michaël de Becker, Jean Surdej, Bernard Aringer, Joseph Hron, Thomas Lebzelter, Andrea Chiavassa, Romano Corradi, Tim Harries

Proceedings Volume 7013, 70133Z (2008) https://doi.org/10.1117/12.787877

KEYWORDS: Telescopes, Visibility, Image restoration, Interferometry, Astatine, Data modeling, Stars, Interferometers, Fourier transforms, Optical interferometry

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Proceedings Article | 28 July 2008 Paper

LITpro: a model fitting software for optical interferometry

I. Tallon-Bosc, M. Tallon, E. Thiébaut, C. Béchet, G. Mella, S. Lafrasse, O. Chesneau, A. Domiciano de Souza, G. Duvert, D. Mourard, R. Petrov, M. Vannier

Proceedings Volume 7013, 70131J (2008) https://doi.org/10.1117/12.788871

KEYWORDS: Data modeling, Interferometry, Visibility, Optical interferometry, Java, Surface conduction electron emitter displays, Photometry, Fourier transforms, Stars, Human-machine interfaces

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Proceedings Article | 28 July 2008 Paper

System overview of the VLTI Spectro-Imager

L. Jocou, J. P. Berger, F. Malbet, P. Kern, U. Beckmann, D. Lorenzetti, L. Corcione, G. Li Causi, D. Buscher, J. Young, M. Gai, G. Weigelt, G. Zins, G. Duvert, K. Perraut, P. Labeye, O. Absil, P. Garcia, D. Loreggia, J. Lima, J. Rebordao, S. Ligori, A. Amorim, P. Rabou, J. B. Le Bouquin, C. Haniff, E. Le Coarer, P. Feautrier, G. Duchene, M. Benisty, A. Chelli, E. Herwats, A. Delboulbé

Proceedings Volume 7013, 70132Y (2008) https://doi.org/10.1117/12.789154

KEYWORDS: Optical fibers, Mirrors, Sensors, Beam splitters, Interferometry, Spectrographs, Fourier transforms, Calibration, Information operations, Computed tomography

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Proceedings Article | 28 July 2008 Paper

VSI: the VLTI spectro-imager

F. Malbet, D. Buscher, G. Weigelt, P. Garcia, M. Gai, D. Lorenzetti, J. Surdej, J. Hron, R. Neuhäuser, P. Kern, L. Jocou, J.-P. Berger, O. Absil, U. Beckmann, L. Corcione, G. Duvert, M. Filho, P. Labeye, E. Le Coarer, G. Li Causi, J. Lima, K. Perraut, E. Tatulli, E. Thiébaut, J. Young, G. Zins, A. Amorim, B. Aringer, T. Beckert, M. Benisty, X. Bonfils, A. Cabral, A. Chelli, O. Chesneau, A. Chiavassa, R. Corradi, M. De Becker, A. Delboulbé, G. Duchêne, T. Forveille, C. Haniff, E. Herwats, K.-H. Hofmann, J.-B. Le Bouquin, S. Ligori, D. Loreggia, A. Marconi, A. Moitinho, B. Nisini, P.-O. Petrucci, J. Rebordao, R. Speziali, L. Testi, F. Vitali

Proceedings Volume 7013, 701329 (2008) https://doi.org/10.1117/12.789710

KEYWORDS: Telescopes, Stars, Spectral resolution, Spatial resolution, Interferometry, Integrated optics, Space telescopes, Visibility, Image restoration, Signal to noise ratio

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The VLTI Spectro Imager (VSI) was proposed as a second-generation instrument of the Very Large Telescope Interferometer providing the ESO community with spectrally-resolved, near-infrared images at angular resolutions down to 1.1 milliarcsecond and spectral resolutions up to R = 12000. Targets as faint as K = 13 will be imaged without requiring a brighter nearby reference object; fainter targets can be accessed if a suitable reference is available. The unique combination of high-dynamic-range imaging at high angular resolution and high spectral resolution enables a scientific program which serves a broad user community and at the same time provides the opportunity for breakthroughs in many areas of astrophysics. The high level specifications of the instrument are derived from a detailed science case based on the capability to obtain, for the first time, milliarcsecond-resolution images of a wide range of targets including: probing the initial conditions for planet formation in the AU-scale environments of young stars; imaging convective cells and other phenomena on the surfaces of stars; mapping the chemical and physical environments of evolved stars, stellar remnants, and stellar winds; and disentangling the central regions of active galactic nuclei and supermassive black holes. VSI will provide these new capabilities using technologies which have been extensively tested in the past and VSI requires little in terms of new infrastructure on the VLTI. At the same time, VSI will be able to make maximum use of new infrastructure as it becomes available; for example, by combining 4, 6 and eventually 8 telescopes, enabling rapid imaging through the measurement of up to 28 visibilities in every wavelength channel within a few minutes. The current studies are focused on a 4-telescope version with an upgrade to a 6-telescope one. The instrument contains its own fringe tracker and tip-tilt control in order to reduce the constraints on the VLTI infrastructure and maximize the scientific return.

Proceedings Article | 28 July 2008 Paper

Phase referencing in optical interferometry

Mercedes Filho, Paulo Garcia, Gilles Duvert, Gaspard Duchene, Eric Thiebaut, John Young, Olivier Absil, Jean-Phillipe Berger, Thomas Beckert, Sebastian Hoenig, Dieter Schertl, Gerd Weigelt, Leonardo Testi, Eric Tatuli, Virginie Borkowski, Michaël de Becker, Jean Surdej, Bernard Aringer, Joseph Hron, Thomas Lebzelter, Andrea Chiavassa, Romano Corradi, Tim Harries

Proceedings Volume 7013, 70131F (2008) https://doi.org/10.1117/12.787908

KEYWORDS: Visibility, Image restoration, Optical interferometry, Image resolution, Stars, Telescopes, Radio optics, Interferometry, Signal to noise ratio, Fourier transforms

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Proceedings Article | 28 June 2006 Paper

Experiences from the first AMBER open time observations

Fredrik Rantakyrö, Pascal Ballester, Stephane Brillant, Gilles Duvert, Emmanuel Galliano, Christian Hummel, Andreas Kaufer, Mario Kiekebusch, Etienne Le-Coarer, Tom Licha, Fabien Malbet, Pedro Mardones, Florentin Millour, Sebastien Morel, Isabelle Percheron, Monika Petr-Gotzens, Romain Petrov, Andrea Richichi, Thomas Rivinius, Markus Schöller, Stan Stefl, Martin Vannier, Markus Wittkowski, Gerard Zins

Proceedings Volume 6268, 62681N (2006) https://doi.org/10.1117/12.671910

KEYWORDS: Telescopes, Calibration, K band, Observatories, Astatine, Motion models, Astronomy, Spectral resolution, Lawrencium, Interferometry

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