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A giant planet candidate near a young brown dwarf - Direct VLT/NACO observations using IR wavefront sensing
- G. Chauvin, A. Lagrange, P. Lowrance
- Physics, Geology
- 14 September 2004
We present deep VLT/NACO infrared imaging and spectroscopic observations of the brown dwarf 2MASSWJ 1207334−393254, obtained during our on-going adaptive optics survey of southern young, nearby…
NAOS-CONICA first on sky results in a variety of observing modes
- R. Lenzen, M. Hartung, D. Mouillet
- PhysicsSPIE Astronomical Telescopes + Instrumentation
- 7 March 2003
The Adaptive Optics NIR Instrument NAOS-CONICA has been commissioned at the VLT (UT4) between November 2001 and March 2002. After summarizing the observational capabilities of this multimode…
A Giant Planet Imaged in the Disk of the Young Star β Pictoris
- A. Lagrange, M. Bonnefoy, M. Kasper
- Physics, GeologyScience
- 16 June 2010
TLDR
NAOS, the first AO system of the VLT: on-sky performance
- G. Rousset, F. Lacombe, G. Zins
- PhysicsSPIE Astronomical Telescopes + Instrumentation
- 1 February 2003
NAOS is the first adaptive optics system installed at the VLT 8m telescopes. It was designed, manufactured and tested by a french Consortium under an ESO contract, to provide compensated images to…
Giant Planet Companion to 2MASSW J1207334-393254
- G. Chauvin, A. Lagrange, P. Lowrance
- Physics, Geology
- 29 April 2005
We report new VLT/NACO imaging observations of the young, nearby brown dwarf 2MASSW J1207334-393254 and its suggested planetary mass companion (2M1207 b). Three epochs of VLT/NACO measurements…
A companion to AB Pic at the planet/brown dwarf boundary
- G. Chauvin, A. Lagrange, M. Bessell
- Geology, Physics
- 29 April 2005
We report deep imaging observations of the young, nearby star AB Pic, a member of the large Tucana-Horologium association. We have detected a faint, red source $5.5''$ South of the star with JHK …
Weak magnetic fields in Ap/Bp stars - Evidence for a dipole field lower limit and a tentative interp
- M. Aurière, G. Wade, N. Toqué
- Physics
- 8 October 2007
Aims. We investigated a sample of 28 well-known spectroscopically-identified magnetic Ap/Bp stars, with weak, poorly-determined or previously undetected magnetic fields. The aim of this study is to…
A planet on an inclined orbit as an explanation of the warp in the β Pictoris disc
- D. Mouillet, J. Larwood, J. Papaloizou, A. Lagrange
- Physics, Geology
- 13 May 1997
We consider the deformation that has recently been observed in the inner part of the circumstellar disc around f3 Pictoris with the HST. Our recent ground-based, adaptive optics coronographic…
AMBER, the near-infrared spectro-interferometric three-telescope VLTI instrument
- R. Petrov, F. Malbet, N. Ventura
- Physics
- 1 March 2007
Context: Optical long-baseline interferometry is moving a crucial step forward with the advent of general-user scientific instruments that equip large aperture and hectometric baseline facilities,…
Hst/nicmos2 coronagraphic observations of the circumstellar environment of three old pms stars: hd 100546, sao 206462 and mwc 480
- J. Augereau, A. Lagrange, D. Mouillet, F. Grenoble, U. J. Fourier-CNRS, France Canada-France-Hawaii Telescope Corporation
- Physics
- 29 September 2000
The close environment of four old Pre-Main Sequence stars has been observed thanks to the coronagraphic mode of the HST/NICMOS2 camera at $\lambda=1.6 \mu$m. In the course of this program, a cir cum…
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