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Near Infrared Observations of GQ Lup b Using the Gemini Integral Field Spectrograph NIFS
Jean-Francois Lavigne, Rene Doyon, David Lafreniere +2
We present new JHK spectroscopy (R ~ 5000) of GQ Lup b, acquired with the near-infrared integral field spectrograph NIFS and the adaptive optics system ALTAIR at the Gemini North t…
Substellar Objects in Nearby Young Clusters (SONYC): The bottom of the Initial Mass Function in NGC1333
Alexander Scholz, Vincent Geers, Ray Jayawardhana +4
SONYC -- Substellar Objects in Nearby Young Clusters -- is a survey program to investigate the frequency and properties of substellar objects with masses down to a few times that o…
Imaging search for the unseen companion to Eps Ind A -- Improving the detection limits with 4 micron observations
M. Janson, D. Apai, M. Zechmeister +9
Eps Ind A is one of the nearest sun-like stars, located only 3.6 pc away. It is known to host a binary brown dwarf companion, Eps Ind Ba/Bb, at a large projected separation of 6.7"…
Photometric Variability of the T2.5 Brown Dwarf SIMP J013656.5+093347; Evidence for Evolving Weather Patterns
Étienne Artigau, Sandie Bouchard, René Doyon +1
We report the discovery of a photometric variability in the bright T2.5 brown dwarf SIMP J013656.5+093347. Continuous J-band photometry has been obtained for several hours on four…
Discovery of the Widest Very Low Mass Field Binary
Jacqueline Radigan, David Lafrenière, Ray Jayawardhana +1
We present the discovery of the widest (~6700 AU) very low mass field binary to date, found in a proper motion cross-match of the Sloan Digital Sky Survey and the Two Micron All Sk…
HST/NICMOS detection of HR 8799 b in 1998
David Lafrenière, Christian Marois, René Doyon +1
Three planets have been directly imaged around the young star HR 8799. The planets are 5-13 Mjup and orbit the star at projected separations of 24-68 AU. While the initial detectio…