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The Planetary Mass Companion 2MASS1207-3932 B: Temperature, Mass and Evidence for an Edge-On Disk
Subhanjoy Mohanty, Ray Jayawardhana, Nuria Huelamo +1
We present J-band imaging and H+K-band low-resolution spectroscopy of 2MASS1207-3932 AB, obtained with VLT NACO. For the putative planetary mass secondary, we find J = 20.0+/-0.2 m…
Spitzer 24 Micron Observations of Open Cluster IC 2391 and Debris Disk Evolution of FGK Stars
Nick Siegler, James Muzerolle, Erick T. Young +5
We present 24 micron Spitzer/MIPS photometric observations of the ~50 Myr open cluster IC 2391. Thirty-four cluster members ranging in spectral type from B3-M5 were observed in the…
A New Nearby Candidate Star Cluster in Ophiuchus at d = 170 pc
Eric E. Mamajek
The recent discoveries of nearby star clusters and associations within a few hundred pc of the Sun, as well as the order of magnitude difference in the formation rates of the embed…
A Distributed Population of Low Mass Pre-Main Sequence Stars near the Taurus Molecular Clouds
Catherine L. Slesnick, John M. Carpenter, Lynne A. Hillenbrand +1
We present a drift scan survey covering a ~5 deg by 50 deg region toward the southern portion of the Taurus-Auriga molecular cloud. Data taken in the B,R,I filters with the Quest-2…
Formation and Evolution of Planetary Systems: Upper Limits to the Gas Mass in Disks Around Sun-like Stars
I. Pascucci, U. Gorti, D. Hollenbach +17
We have carried out a sensitive search for gas emission lines at infrared and millimeter wavelengths for a sample of 15 young sun-like stars selected from our dust disk survey with…
The Low-mass Populations in OB Associations
Cesar Briceno, Thomas Preibisch, William Sherry +4
Low-mass stars 0.1 ~< M ~< 1 Msun) in OB associations are key to addressing some of the most fundamental problems in star formation. The low-mass stellar populations of OB associat…