A
Anne-Marie Lagrange
Researcher at University of Grenoble
Publications - 195
Citations - 13333
Anne-Marie Lagrange is an academic researcher from University of Grenoble. The author has contributed to research in topics: Planet & Exoplanet. The author has an hindex of 62, co-authored 195 publications receiving 12485 citations. Previous affiliations of Anne-Marie Lagrange include Institut Universitaire de France & Centre national de la recherche scientifique.
Papers
More filters
Journal ArticleDOI
A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way
Rainer Schödel,T. Ott,Reinhard Genzel,Reiner Hofmann,Matt Lehnert,Andreas Eckart,Nelly Mouawad,Tal Alexander,Mark J. Reid,Rainer Lenzen,Markus Hartung,Francois Lacombe,Daniel Rouan,Eric Gendron,Gérard Rousset,Anne-Marie Lagrange,Wolfgang Brandner,N. Ageorges,Christopher Lidman,A. F. M. Moorwood,Jason Spyromilio,Norbert Hubin,Karl M. Menten +22 more
TL;DR: Ten years of high-resolution astrometric imaging allow us to trace two-thirds of the orbit of the star currently closest to the compact radio source (and massive black-hole candidate) Sagittarius A* and show that the star is on a bound, highly elliptical keplerian orbit around Sgr A*.
Journal ArticleDOI
A Giant Planet Imaged in the Disk of the Young Star β Pictoris
Anne-Marie Lagrange,Mickael Bonnefoy,Gael Chauvin,Daniel Apai,David Ehrenreich,Anthony Boccaletti,Damien Gratadour,Daniel Rouan,David Mouillet,Sylvestre Lacour,M. Kasper +10 more
TL;DR: It is shown that the ~10-million-year-oldβ Pictoris system hosts a massive giant planet, β Pictoris b, located 8 to 15 astronomical units from the star, which confirms that gas giant planets form rapidly within disks and validates the use of disk structures as fingerprints of embedded planets.
Journal ArticleDOI
A probable giant planet imaged in the β Pictoris disk. VLT/NaCo deep L'-band imaging
Anne-Marie Lagrange,Damien Gratadour,Gael Chauvin,Thierry Fusco,David Ehrenreich,David Mouillet,Gérard Rousset,Gérard Rousset,Daniel Rouan,F. Allard,Eric Gendron,Julien Charton,Laurent M. Mugnier,P. Rabou,J. Montri,Francois Lacombe +15 more
TL;DR: In this paper, a point-like signal is detected at a projected distance of 8 AU from the star, within the northeastern extension of the dust disk, which suggests a formation process by core accretion or disk instabilities rather than binary-like formation processes.
Proceedings ArticleDOI
NAOS, the first AO system of the VLT: on-sky performance
Gérard Rousset,Francois Lacombe,Pascal Puget,Norbert Hubin,Eric Gendron,Thierry Fusco,Robin Arsenault,Julien Charton,Philippe Feautrier,P. Gigan,Pierre Kern,Anne-Marie Lagrange,Pierre-Yves Madec,David Mouillet,Didier Rabaud,Patrick Rabou,Eric Stadler,Gérard Zins +17 more
TL;DR: NAOS-CONICA as mentioned in this paper is the first adaptive optics system installed at the VLT 8m telescopes and it was designed, manufactured and tested by a french Consortium under an ESO contract, to provide compensated images to the high angular resolution IR spectro-imaging camera.
Proceedings ArticleDOI
NAOS-CONICA first on sky results in a variety of observing modes
Rainer Lenzen,Markus Hartung,Wolfgang Brandner,Gert Finger,Norbert Hubin,Francois Lacombe,Anne-Marie Lagrange,Matthew D. Lehnert,Alan Moorwood,David Mouillet +9 more
TL;DR: The Adaptive Optics NIR Instrument NAOS-CONICA has been commissioned at the VLT (UT4) between November 2001 and March 2002 as discussed by the authors, and it has been used for high spatial resolution slit-spectroscopy in the optical and thermal NIR region.