activity
19992009
most citedThe Relationship between the Optical Depth of the 9.7 micron Silicate Absorption Feature and Infrared Differential Extinction in Dense Clouds

88 citations · 222 across the 7 of their papers we have counts for

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Showing 2005Show all

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astro-ph2005

Searching for proto-brown dwarfs: Extending near IR spectroscopy of protostars below the hydrogen burning limit

Kevin R. Covey, Thomas P. Greene, Greg W. Doppmann +2

Recent observations of nearby star forming regions have offered evidence that young brown dwarfs undergo a period of mass accretion analogous to the T Tauri phase observed in young…

astro-ph2005

The Radial Velocity Distribution of Class I and Flat-Spectrum Protostars

Kevin R. Covey, Thomas P. Greene, Greg W. Doppmann +1

We analyze radial velocities for a sample of 31 Class I and flat spectrum protostars in Taurus-Auriga, rho Ophiuchi and Serpens for evidence of the global dynamical state of extrem…

astro-ph2005

Optical Spectroscopy of the Surface Population of the rho Ophiuchi Molecular Cloud: The First Wave of Star Formation

Bruce A. Wilking, Michael R. Meyer, John G. Robinson +1

We present the results of optical spectroscopy of 139 stars obtained with the Hydra multi-object spectrograph. The objects extend over a 1.3 square degree area surrounding the main…

astro-ph2005

The Physical Natures of Class I and Flat-Spectrum Protostellar Photospheres: A Near-Infrared Spectroscopic Study

G. W. Doppmann, T. P. Greene, K. R. Covey +1

We present high resolution (R = 18,000), high signal-to-noise, 2 micron spectra of 52 infrared-selected Class I and flat-spectrum young stellar objects in the Taurus-Auriga, Op…

astro-ph2005

The Angular Momentum Content and Evolution of Class I and Flat-Spectrum Protostars

Kevin R. Covey, Thomas P. Greene, Greg W. Doppmann +1

We report on the angular momentum content of heavily embedded protostars based on our analysis of the projected rotation velocities (v sin i s) of 38 Class I/flat spectrum young st…