FW
F. Widmann
astro-ph.GAastro-ph.IMastro-ph.SRastro-ph.EPastro-ph.HEgr-qcastro-ph.CO
On Valency
published · living versionsW_e292bt9v·v1 · currentpublished
Deep Images of the Galactic Center with GRAVITY
with GRAVITY Collaboration, R. Abuter, N. Aimar, A. Amorim +63
1 version
W_gvqd3mhf·v1published
W_wtvfdjv6·v1published
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W_fp2u8z52·v1published
Preprints & journals
55 papers in the corpus · 2016–2026GRAVITY+: reducing non-common-path aberrations for sub-10 {\mu}as astrometric accuracy2608.05751v1 · Quentin Fournier, Guillaume Bourdarot, Frank Eisenhauer et al.2026 · 0 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
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
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
GRAVITY+ adaptive optics (GPAO) tests in Europe2506.03721v1 · Florentin Millour (LAGRANGE), Guillaume Bourdarot (MPE), Jean-Baptiste Le Bouquin (IPAG) et al.2025 · 1 citationOptical and Infrared Interferometry and Imaging IX, Jun 2024, Yokohama, France. pp.72
First Resolution of Microlensed Images of a Binary-Lens Event2409.13015v3 · Zexuan Wu, Subo Dong, A. M'erand et al.2024 · 7 citationsAstrophys. j. 977 (2024) 229
Observations of Microlensed Images with Dual-field Interferometry: On-sky Demonstration and Prospects2409.12227v2 · P. Mroz, S. Dong, A. Merand et al.2024 · 5 citationsApJ 980, 47 (2025)
GRAVITY+ Wavefront Sensors: High-Contrast, Laser Guide Star, Adaptive Optics systems for the VLTI2409.08438v1 · G.Bourdarot, F.Eisenhauer, S.Yaz\icı et al.2024 · 2 citationsSPIE Proceedings, Yokohama 2024
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
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)
A catalogue of dual-field interferometric binary calibrators2402.05019v1 · M. Nowak, S. Lacour, R. Abuter et al.2024 · 10 citationsA&A 687, A248 (2024)
Upgrading the GRAVITY fringe tracker for GRAVITY+: Tracking the white light fringe in the non-observable Optical Path Length state-space2402.03594v1 · M. Nowak, S. Lacour, R. Abuter et al.2024 · 1 citationarXiv
A dynamical measure of the black hole mass in a quasar 11 billion years ago.38286342 · Abuter, R, Allouche, F, Amorim, A et al.2024 · 69 citationsNature. 2024;627(8003):281-285
The size-luminosity relation of local active galactic nuclei from interferometric observations of the broad-line region2401.07676v1 · A. Amorim, G. Bourdarot, W. Brandner et al.2024 · 62 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
Polarization analysis of the VLTI and GRAVITY2311.03472v1 · F. Widmann, X. Haubois N. Schuhler, O. Pfuhl et al.2023 · 13 citationsarXiv
First VLTI/GRAVITY Observations of HIP 65426 b: Evidence for a Low or Moderate Orbital Eccentricity2310.00148v2 · S. Blunt, W. O. Balmer, J. J. Wang et al.2023 · 17 citationsarXiv
VLTI/GRAVITY Observations and Characterization of the Brown Dwarf Companion HD 72946 B2309.04403v3 · W. O. Balmer, L. Pueyo, T. Stolker et al.2023 · 15 citationsarXiv
Using the motion of S2 to constrain scalar clouds around SgrA*2306.17215v4 · A. Foschi, R. Abuter, N. Aimar et al.2023 · 37 citationsarXiv
Accelerations of stars in central 2-7 arcsec from Sgr A*2302.07258v1 · A. Young, S. Gillessen, T. de Zeeuw et al.2023 · 3 citationsA&A 670, A36 (2023)
The GRAVITY+ Project: Towards All-sky, Faint-Science, High-Contrast Near-Infrared Interferometry at the VLTI2301.08071v1 · GRAVITY+ Collaboration: Roberto Abuter, Patricio Alarcon, Fatme Allouche et al.2023 · 26 citationsarXiv
General relativistic effects and the near-infrared and X-ray variability of Sgr A* I2301.02558v1 · Sebastiano D. von Fellenberg, Gunther Witzel, Michi Baubock et al.2023 · 21 citationsarXiv
The GRAVITY Young Stellar Object survey -- IX. Spatially resolved kinematics of hot hydrogen gas in the star/disk interaction region of T Tauri stars2210.13095v3 · J. A. Wojtczak, L. Labadie, K. Perraut et al.2022 · 0 citationsA&A 669, A59 (2023)
Towards measuring supermassive black hole masses with interferometric observations of the dust continuum2209.14410v1 · A. Amorim, G. Bourdarot, W. Brandner et al.2022 · 28 citationsA&A 669, A14 (2023)
GRAVITY faint: reducing noise sources in GRAVITY with a fast metrology attenuation system2209.05593v1 · F. Widmann, S. Gillessen, T. Ott et al.2022 · 2 citationsarXiv
First Light for GRAVITY Wide: Large Separation Fringe Tracking for the Very Large Telescope Interferometer2206.00684v2 · GRAVITY+ Collaboration: R. Abuter, F. Allouche, A. Amorim et al.2022 · 37 citationsA&A 665, A75 (2022)
The young stars in the Galactic Center2205.07595v1 · Sebastiano von Fellenberg, Stefan Gillessen, Julia Stadler et al.2022 · 70 citationsarXiv
P-REx II. Off-line Performance on VLTI/GRAVITY2112.12837v1 · Saavidra Perera, Jorg-Uwe Pott, Julien Woillez et al.2021 · 0 citationsarXiv
Deep Images of the Galactic Center with GRAVITY2112.07477v1 · R. Abuter, N. Aimar, A. Amorim et al.2021 · 37 citationsA&A 657, A82 (2022)on Valency
The mass distribution in the Galactic Centre from interferometric astrometry of multiple stellar orbits2112.07478v1 · R. Abuter, N. Aimar, A. Amorim et al.2021 · 287 citationsA&A, 2021,on Valency
Flaremodel: An open-source Python package for one-zone numerical modelling of synchrotron sources2111.15273v1 · Y. Dallilar, S. von Fellenberg, M. Baubock et al.2021 · 5 citationsA&A 658, A111 (2022)
The GRAVITY Young Stellar Object survey VIII. Gas and dust faint inner rings in the hybrid disk of HD1415692109.10070v2 · V. Ganci, L. Labadie, L. Klarmann et al.2021 · 12 citationsA&A 655, A112 (2021)
A geometric distance to the supermassive black Hole of NGC 37832107.14262v1 · A. Amorim, M. Baubock, M. C. Bentz et al.2021 · 37 citationsA&A 654, A85 (2021)
The GRAVITY Young Stellar Object Survey. VI. Mapping the variable inner disk of HD 163296 at sub-au scales2107.02391v1 · J. Sanchez-Bermudez, A. Caratti o Garatti, R. Garcia Lopez et al.2021 · 23 citationsA&A 654, A97 (2021)
Constraining particle acceleration in Sgr A* with simultaneous GRAVITY, Spitzer, NuSTAR and Chandra observations2107.01096v1 · R. Abuter, A. Amorim, M. Baubock et al.2021 · 67 citationsA&A 654, A22 (2021)
A measure of the size of the magnetospheric accretion region in TW Hydrae2104.06441v1 · R. Garcia Lopez, A. Natta, A. Caratti o Garatti et al.2021 · 46 citationsNature 2020, 584, 547
Relative depolarization of the black hole photon ring in GRMHD models of Sgr A* and M87*2103.06292v1 · A. Jim'enez-Rosales, J. Dexter, S.M. Ressler et al.2021 · 24 citationsarXiv
The ExoGRAVITY project: using single mode interferometry to characterize exoplanets2101.07098v2 · S. Lacour, J. J. Wang, M. Nowak et al.2021 · 8 citationsarXiv
Detection of faint stars near SgrA* with GRAVITY2011.03058v2 · R. Abuter, A. Amorim, M. Baubock et al.2020 · 35 citationsA&A 645, A127 (2021)on Valency
The GRAVITY young stellar object survey III. The dusty disk of RY Lup2008.08527v1 · Y.-I. Bouarour, K. Perraut, F. M'enard et al.2020 · 10 citationsA&A 642, A162 (2020)
Sgr A* near-infrared flares from reconnection events in a magnetically arrested disc2006.03657v2 · J. Dexter, A. Tchekhovskoy, A. Jim'enez-Rosales et al.2020 · 119 citationsarXiv
A parameter survey of Sgr A* radiative models from GRMHD simulations with self-consistent electron heating2004.00019v1 · J. Dexter, A. Jim'enez-Rosales, S. M. Ressler et al.2020 · 71 citationsarXiv
Modeling the orbital motion of Sgr A*'s near-infrared flares2002.08374v1 · M. Baubock, J. Dexter, R. Abuter et al.2020 · 119 citationsarXiv
An image of the dust sublimation region in the nucleus of NGC 10681912.01361v1 · O. Pfuhl, R. Davies, J. Dexter et al.2019 · 112 citationsA&A 634, A1 (2020)
The GRAVITY Young Stellar Object survey -- I. Probing the disks of Herbig Ae/Be stars in terrestrial orbits1911.00611v1 · K. Perraut, L. Labadie, B. Lazareff et al.2019 · 72 citationsarXiv
Scalar field effects on the orbit of S2 star1908.06681v2 · Ant'onio Amorim, Michael Baubock, Myriam Benisty et al.2019 · 68 citationsarXiv
First direct detection of an exoplanet by optical interferometry; Astrometry and K-band spectroscopy of HR8799 e1903.11903v1 · S. Lacour, M. Nowak, J. Wang et al.2019 · 156 citationsarXiv
Test of the Einstein Equivalence Principle near the Galactic Center Supermassive Black Hole.30932663 · Amorim, A, Bauböck, M, Berger, J P et al.2019 · 47 citationsPhysical review letters. 2019;122(10):101102
Spectroscopic Detection of a Cusp of Late-type Stars around the Central Black Hole in the Milky Way1902.07219v1 · M. Habibi, S. Gillessen, O. Pfuhl et al.2019 · 40 citationsarXiv
Detection of a drag force in G2's orbit: Measuring the density of the accretion flow onto Sgr A* at 1000 Schwarzschild radii1812.01416v1 · S. Gillessen, P.M. Plewa, F. Widmann et al.2018 · 78 citationsarXiv
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