AV
A. Vigan
astro-ph.EPastro-ph.IMastro-ph.SRastro-ph.GAastro-phphysics.optics
On Valency
published · living versionsW_kxbebmtq·v1 · currentpublished
An extremely low-density and temperate giant exoplanet
with A. Santerne, L. Malavolta, M. R. Kosiarek, F. Dai +66
1 version
W_ynufkxb8·v1published
Preprints & journals
272 papers in the corpus · 2008–2026The Nancy Grace Roman Space Telescope Coronagraph Community Participation Program2609.18659v1 · Dmitry Savransky, Vanessa P. Bailey, Schuyler G. Wolff et al.2026 · 2 citationsD. Savransky et al. "The Nancy Grace Roman Space Telescope coronagraph community participation program", Proc. SPIE 13092, 2024
The Roman Coronagraph Community Participation Program: corgisim - a simulation suite for the Nancy Grace Roman Space Telescope Coronagraph Instrument2608.17257v1 · Jingwen Zhang, Sophie Noiret, Maxwell A. Millar Blanchaer et al.2026 · 0 citationsProc. SPIE 14145, 141454R (2026)
The Roman Coronagraph Community Participation Program: Using the Zernike wavefront sensor for a full characterisation of the Roman Space Telescope and the Coronagraph Instrument2608.17740v1 · Arthur Vigan, Alexis Bidot, Vincent Chambouleyron et al.2026 · 0 citationsarXiv
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems VIII: patchy forsterite and enstatite clouds in the atmosphere of VHS 1256 b, retrieval lessons learned and outlook to the future2608.06583v1 · Niall Whiteford, Jacqueline K. Faherty, Ben Burningham et al.2026 · 0 citationsarXiv
ForMoSA: Forward Modeling tool for Spectral Analysis2607.26243v1 · Simon Petrus, Paulina Palma-Bifani, Matthieu Ravet et al.2026 · 0 citationsarXiv
ANDES, the high-resolution spectrograph of the ELT: simulated performance of the CORO module and overview of the high-contrast capabilities for exoplanet observations2607.23555v1 · M. N'Diaye, A. Simonnin, A. Spang et al.2026 · 0 citationsarXiv
Latitudinal chemical and cloud variations in the atmosphere of a brown dwarf2607.11642v1 · Benjamin Charnay, Sam de Regt, Matthieu Ravet et al.2026 · 0 citationsarXiv
SAXO+, the second-stage adaptive optics for SPHERE: NCPA compensation and dark-hole loop with a pyramid wavefront sensor2607.10124v1 · Johan Mazoyer, Charles Goulas, Raphael Galicher et al.2026 · 0 citationsarXiv
Cascade adaptive optics with a second stage based on a Zernike wavefront sensor for exoplanet observations II. Validation in broadband light on the ESO/GHOST testbed2606.26895v1 · A. Rahim, M. N'Diaye, A. Vigan et al.2026 · 0 citationsarXiv
The SPHERE infrared survey for exoplanets (SHINE) V. Full sample characterization2605.27247v2 · V. Squicciarini, S. Desidera, G. Chauvin et al.2026 · 0 citationsarXiv
Panchromatic View of the Frigid Jovian Exoplanet COCONUTS-2 b2604.07176v1 · Matthieu Ravet, Mickael Bonnefoy, Gael Chauvin et al.2026 · 0 citationsA&A 710, A46 (2026)
Cold and eccentric: a high-spectral resolution view of 51 Eri b with VLT/HiRISE2602.10260v2 · A. Denis, A. Vigan, G. Chauvin et al.2026 · 0 citationsarXiv
Characterization of debris disks observed with SPHERE2512.03128v2 · N. Engler, J. Milli, N. Pawellek et al.2025 · 9 citationsarXiv
Exomoon search with VLTI/GRAVITY around the substellar companion HD 206893 B2511.20091v1 · Q. Kral, J. Wang, J. Kammerer et al.2025 · 8 citationsarXiv
The ExoGRAVITY survey: A K-band spectral library of giant exoplanet and brown dwarf companions2510.08691v3 · J. Kammerer, T. O. Winterhalder, S. Lacour et al.2025 · 6 citationsA&A 704, A318 (2025)
Multi-modal atmospheric characterization of Pictoris b: Adding high-resolution continuum spectra from GRAVITY2509.25338v2 · M. Ravet, M. Bonnefoy, G. Chauvin et al.2025 · 12 citationsA&A 704, A325 (2025)
Constraints on the Orbit of the Young Substellar Companion GQ Lup B from High-Resolution Spectroscopy and VLTI/GRAVITY Astrometry2509.20621v1 · Vidya Venkatesan, S. Blunt, J. J. Wang et al.2025 · 4 citationsarXiv
YSES 2b is a background star: Differential astrometric M-dwarf measurements in time2509.09504v1 · Matthew Kenworthy, Tomas Stolker, Jens Kammerer et al.2025 · 2 citationsA&A 701 (2025) A104
The mid-infrared spectrum of Pictoris b. First VLTI/MATISSE interferometric observations of an exoplanet2508.18366v2 · M. Houll'e, F. Millour, P. Berio et al.2025 · 3 citationsA&A 704, A182 (2025)
Spectral analysis of two directly imaged benchmark L dwarf companions at the stellar-substellar boundary2507.08654v1 · William Ceva, Elisabeth C. Matthews, Emily L. Rickman et al.2025 · 2 citationsA&A 701, A78 (2025)
Direct imaging discovery of a young giant planet orbiting on Solar System scales2507.06206v1 · T. Stolker, M. Samland, L. B. F. M. Waters et al.2025 · 5 citationsarXiv
The planetary-mass-limit VLT/SINFONI library: Spectral extraction and atmospheric characterization via forward modeling2507.03562v1 · P. Palma-Bifani, M. Bonnefoy, G. Chauvin et al.2025 · 4 citationsA&A 701, A51 (2025)
Orbit and atmosphere of HIP 99770 b through the eyes of VLTI/GRAVITY2507.00117v1 · T. O. Winterhalder, J. Kammerer, S. Lacour et al.2025 · 7 citationsarXiv
Differentiating Formation Models with New Dynamical Masses for the PDS 70 Protoplanets2504.11210v2 · David Trevascus, Sarah Blunt, Valentin Christiaens et al.2025 · 12 citationsA&A 698, A19 (2025)
Advancing European High-Contrast Imaging R&D Towards the Habitable Worlds Observatory2503.12707v1 · Iva Laginja, 'Oscar Carri'on-Gonz'alez, Romain Laugier et al.2025 · 0 citationsarXiv
Characterization of AF Lep b at high spectral resolution with VLT/HiRISE2502.19558v1 · A. Denis, A. Vigan, J. Costes et al.2025 · 14 citationsarXiv
The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results2501.12002v1 · A. Chomez, P. Delorme, A.-M. Lagrange et al.2025 · 8 citationsA&A 697, A99 (2025)
Cascade adaptive optics with a second stage based on a Zernike wavefront sensor for exoplanet observations2411.11946v2 · M. N'Diaye, A. Vigan, B. Engler et al.2024 · 3 citationsA&A 692, A157 (2024)
VLTI/GRAVITY Observations of AF Lep b: Preference for Circular Orbits, Cloudy Atmospheres, and a Moderately Enhanced Metallicity2411.05917v1 · William O. Balmer, Kyle Franson, Antoine Chomez et al.2024 · 31 citationsarXiv
The cool brown dwarf Gliese 229 B is a close binary.39415016 · Xuan, Jerry W, Mérand, A, Thompson, W et al.2024 · 30 citationsNature. 2024;634(8036):1070-1074
Giant planets population around B stars from the first part of the BEAST survey2409.18793v1 · P. Delorme, A. Chomez, V. Squicciarini et al.2024 · 9 citationsA&A 692, A263 (2024)
ESCAPE project: testing active observing strategies for high-contrast imaging in space on the HiCAT testbed2409.11062v1 · Alexis Lau, 'Elodie Choquet, Lisa Altinier et al.2024 · 0 citationsarXiv
ESCAPE project. CAPyBARA: a Roman Coronagraph simulator for post-processing methods development2409.05781v1 · Lisa Altinier, 'Elodie Choquet, Arthur Vigan et al.2024 · 0 citationsProceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave
A new atmospheric characterization of the sub-stellar companion HR\,2562\,B with JWST/MIRI observations2409.04524v1 · Nicol'as Godoy, Elodie Choquet, Eugene Serabyn et al.2024 · 7 citationsarXiv
ESCAPE project: fundamental detection limits of JWST/NIRCam coronographic observations2409.03485v1 · N. Godoy, E. Choquet, L. Altinier et al.2024 · 1 citationProceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 1309252 (2024)
ESCAPE project: investigating active observing strategies and post-processing methods for exoplanet high-contrast imaging with future space missions2409.02019v1 · Elodie Choquet, Lisa Altinier, Nicol'as Godoy et al.2024 · 2 citationsProc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130926I (23 August 2024)
Upgrading SPHERE with the second stage AO system SAXO+: non-common path aberrations estimation and correction2406.18424v1 · Johan Mazoyer, Charles Goulas, Fabrice Vidal et al.2024 · 1 citationarXiv
The PLATO Mission2406.05447v2 · Heike Rauer, Conny Aerts, Juan Cabrera et al.2024 · 13 citationsarXiv
High contrast at short separation with VLTI/GRAVITY: Bringing Gaia companions to light2406.04003v1 · N. Pourr'e, T.O. Winterhalder, J.-B. Le Bouquin et al.2024 · 11 citationsarXiv
Fresh view of the hot brown dwarf HD 984 B through high-resolution spectroscopy2404.11523v1 · J. C. Costes, J. W. Xuan, A. Vigan et al.2024 · 20 citationsA&A 686, A294 (2024)
Four-of-a-kind? Comprehensive atmospheric characterisation of the HR 8799 planets with VLTI/GRAVITY2404.03776v2 · E. Nasedkin, P. Molliere, S. Lacour et al.2024 · 58 citationsA&A 687, A298 (2024)
Combining Gaia and GRAVITY: Characterising five new Directly Detected Substellar Companions2403.13055v2 · T. O. Winterhalder, S. Lacour, A. M'erand et al.2024 · 17 citationsA&A 688, A44 (2024)
A catalogue of dual-field interferometric binary calibrators2402.05019v1 · M. Nowak, S. Lacour, R. Abuter et al.2024 · 10 citationsA&A 687, A248 (2024)
The discovery of two new benchmark brown dwarfs with precise dynamical masses at the stellar-substellar boundary2401.10058v3 · Emily L. Rickman, Will Ceva, Elisabeth C. Matthews et al.2024 · 10 citationsA&A 684, A88 (2024)
Behind the Mask: can HARMONI@ELT detect biosignatures in the reflected light of Proxima b?2401.09589v1 · Sophia R. Vaughan, Jayne L. Birkby, Niranjan Thatte et al.2024 · 23 citationsarXiv
Atmospheric properties of AF Lep b with forward modeling2401.05491v1 · P. Palma-Bifani, G. Chauvin, D. Borja et al.2024 · 22 citationsarXiv
VLTI/GRAVITY Provides Evidence the Young, Substellar Companion HD 136164 Ab formed like a "Failed Star"2312.08283v1 · William O. Balmer, L. Pueyo, S. Lacour et al.2023 · 12 citationsarXiv
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems V: Do Self-Consistent Atmospheric Models Represent JWST Spectra? A Showcase With VHS 1256 b2312.03852v2 · Simon Petrus, Niall Whiteford, Polychronis Patapis et al.2023 · 1 citationarXiv
Pictoris b through the eyes of the upgraded CRIRES+2311.13527v1 · Rico Landman, Tomas Stolker, Ignas Snellen et al.2023 · 60 citationsarXiv
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems IV: NIRISS Aperture Masking Interferometry Performance and Lessons Learned2310.11499v2 · Steph Sallum, Shrishmoy Ray, Jens Kammerer et al.2023 · 11 citationsarXiv
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