Kirkpatrick, J. Davy, Cruz, Kelle L., Barman, Travis S., Burgasser, Adam J., Looper, Dagny L., Tinney, C. G., ...
Using a large sample of optical spectra of late-type dwarfs, we identify a subset of late-M through L field dwarfs that, because of the presence of low-gravity features in their spectra, are believed...
Kirkpatrick, J. Davy, Cruz, Kelle L., Barman, Travis S., Burgasser, Adam J., Looper, Dagny L., Tinney, C. G., ...
Using a large sample of optical spectra of late-type dwarfs, we identify a subset of late-M through L field dwarfs that, because of the presence of low-gravity features in their spectra, are believed...
Glenn Schneider, Bradford A. Smith, E. E. Becklin, David W. Koerner, Dean C. Hines, Patrick J. Lowrance, ...
We report the first near-infrared (NIR) imaging of a circumstellar annular disk around the young (∼8 Myr), Vega-like star HR 4796A. NICMOS coronagraph observations at 1.1 and 1.6 mm reveal a...
Patrick J. Lowrance, Dean C. Hines, J. Davy Kirkpatrick, David W. Koerner, Frank Low, Marcia Rieke, ...
We present the discovery of a candidate substellar object in a survey of young stars in the solar vicinity using the sensitivity and spatial resolution afforded by the NICMOS coronagraph on the...
Patrick J. Lowrance, Glenn Schneider, J. Davy Kirkpatrick, E. E. Becklin, Alycia J. Weinberger, B. Zuckerman, ...
We present the discovery of a candidate substellar companion from a survey of nearby young stars made with the Near-Infrared Camera and Multiobject Spectrometer coronagraph on the Hubble Space...
Smith: 'Substellar Companions to Nearby Stars from NICMOS Surveys (2007)
Glenn Schneider, Eric E. Becklin, Patrick J. Lowrance, Bradford A. Smith
Abstract. A coronagraphic imaging survey of 65 nearby stars was conducted using the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) on the Hubble Space Telescope by the Instrument...
Near and Mid-IR Photometry of the Pleiades, and a New List of Substellar Candidate Members (2007)
Stauffer, John R., Hartmann, Lee W., Fazio, Giovanni G., Allen, Lori E., Patten, Brian M., Lowrance, Patrick J., ...
We make use of new near and mid-IR photometry of the Pleiades cluster in order to help identify proposed cluster members. We also use the new photometry with previously published photometry to define...
William T. Reach, Jason A. Surace, W. J. Glaccum, Sean J. Carey, Mark Lacy, Gillian Wilson, ...
What is new in the Handbook?
Discovery of a Very Young Field L Dwarf, 2MASS J01415823-4633574 (2005)
Kirkpatrick, J. Davy, Barman, Travis S., Burgasser, Adam J., McGovern, Mark R., McLean, Ian S., Tinney, Christopher G., ...
While following up L dwarf candidates selected photometrically from the Two Micron All Sky Survey, we uncovered an unusual object designated 2MASS J01415823-4633574. Its optical spectrum exhibits...
Multiplicity Amongst Wide Brown Dwarf Companions to Nearby Stars: Gliese 337CD (2005)
Burgasser, Adam J., Kirkpatrick, J. Davy, Lowrance, Patrick J.
We present Lick Natural Guide Star Adaptive Optics observations of the L8 brown dwarf Gliese 337C, which is resolved for the first time into two closely separated (0"53+/-0"03), nearly equal...
Patrick J. Lowrance, E. E. Becklin, Glenn Schneider, J. Davy Kirkpatrick, Alycia J. Weinberger, B. Zuckerman, ...
We have used the F160W filter (1.4–1.8 m) and the coronagraph on the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) on the Hubble Space Telescope to survey 45 single stars with a...
Identifying Young Brown Dwarfs Using Gravity-Sensitive Spectral Features (2003)
McGovern, Mark R., Kirkpatrick, J. Davy, McLean, Ian S., Burgasser, Adam J., Prato, L., Lowrance, Patrick J.
We report the initial results of the Brown Dwarf Spectroscopic Survey Gravity Project, to study gravity sensitive features as indicators of youth in brown dwarfs. Low-resolution (R~2000) J-band and...
Meeting the Cool New Neighbors V: A 2MASS-Selected Sample of Ultracool Dwarfs (2003)
Cruz, Kelle L., Reid, I. Neill, Liebert, James, Kirkpatrick, J. Davy, Lowrance, Patrick J.
We present initial results of our effort to create a statistically robust, volume-limited sample of ultracool dwarfs from the 2MASS Second Incremental Data Release. We are engaged in a multifaceted...
The Discovery of Two Nearby Carbon Dwarfs (2003)
Lowrance, Patrick J., Kirkpatrick, J. Davy, Reid, I. Neill, Cruz, Kelle L., Liebert, James
The comparison of optical and 2MASS near-infrared photometry for large samples of catalogued proper motion stars has the potential to discover previously unrecognized nearby objects of rare type. In...
Companions to Young Stars (2002)
Brown dwarfs occupy the important region in the mass range between stars and planets. Their existence, ambigious until only recently, and their properties give insight into stellar and planetary...
A Distant Stellar Companion in the Upsilon Andromedae System (2002)
Lowrance, Patrick J., Kirkpatrick, J. Davy, Beichman, Charles A.
Upsilon Andromedae is an F8V star known to have an extrasolar system of at least 3 planets in orbit around it. Here we report the discovery of a low-mass stellar companion to this system. The...
NICMOS Imaging of the HR 4796A Circumstellar Disk (1999)
Schneider, Glenn, Smith, Bradford A., Becklin, E. E., Koerner, David W., Meier, Roland, Hines, Dean C., ...
We report the first near infrared (NIR) imaging of a circumstellar annular disk around the young (~8 Myr), Vega-like star, HR 4796A. NICMOS coronagraph observations at 1.1 and 1.6 microns reveal a...