The Carnegie Astrometric Planet Search Program (2009)
Boss, Alan P., Weinberger, Alycia J., Anglada-Escude, Guillem, Thompson, Ian B., Burley, Gregory, Birk, Christoph, ...
We are undertaking an astrometric search for gas giant planets and brown dwarfs orbiting nearby low mass dwarf stars with the 2.5-m du Pont telescope at the Las Campanas Observatory in Chile. We have...
A Survey for a Coeval, Comoving Group Associated with HD 141569 (2008)
Aarnio, Alicia N., Weinberger, Alycia J., Stassun, Keivan G., Mamajek, Eric E., James, David J.
We present results of a search for a young stellar moving group associated with the star HD 141569, a nearby, isolated Herbig AeBe primary member of a 5+/-3 Myr-old triple star system on the...
Gas and Dust Associated with the Strange, Isolated, Star BP Piscium (2008)
Zuckerman, B., Melis, C., Song, Inseok, Meier, David S., Perrin, Marshall D., Macintosh, Bruce, ...
We have carried out a multiwavelength observational campaign demonstrating some of the remarkable properties of the infrared-bright variable star BP Psc. Surrounded by a compact dusty, gaseous disk,...
Gas and dust associated with the strange, isolated, star BP Piscium (2008)
Zuckerman, B., Melis, C., Song, Inseok, Meier, David S., Perrin, Marshall D., Macintosh, Bruce, ...
Also archived in: arXiv:0802.0226v2 [astro-ph]
John H. Debes, Alycia J. Weinberger, Glenn Schneider
We combine HST NICMOS imaging photometry of the HR 4796A disk at previously unobserved wavelengths between 1.71–2.22 mm with reprocessed archival observations to produce a measure of the dust’s...
Debris Disks Around Nearby Stars with Circumstellar Gas (2007)
Roberge, Aki, Weinberger, Alycia J.
We conducted a survey for infrared excess emission from 16 nearby main sequence shell stars using the Multiband Imaging Photometer for Spitzer (MIPS) on the Spitzer Space Telescope. Shell stars are...
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...
First Evidence of a Precessing Jet Excavating a Protostellar Envelope (2006)
Ybarra, Jason E., Barsony, Mary, Haisch, Karl E., Jarrett, Thomas H., Sahai, Raghvendra, ...
We present new, sensitive, near-infrared images of the Class I protostar, Elias 29, in the Ophiuchus cloud core. To explore the relationship between the infall envelope and the outflow, narrowband H2...
The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk (2006)
Roberge, Aki, Feldman, Paul D., Weinberger, Alycia J., Deleuil, Magali, Bouret, Jean-Claude
The edge-on disk surrounding the nearby young star Beta Pictoris is the archetype of the "debris disks", which are composed of dust and gas produced by collisions and evaporation of planetesimals,...
The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk (2006)
Roberge, Aki, Feldman, Paul D., Weinberger, Alycia J., Deleuil, Magali, Bouret, Jean-Claude
The edge-on disk surrounding the nearby young star Beta Pictoris is the archetype of the "debris disks", which are composed of dust and gas produced by collisions and evaporation of planetesimals,...
The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk (2006)
Roberge, Aki, Feldman, Paul D., Weinberger, Alycia J., Deleuil, Magali, Bouret, Jean-Claude
The edge-on disk surrounding the nearby young star Beta Pictoris is the archetype of the "debris disks", which are composed of dust and gas produced by collisions and evaporation of planetesimals,...
The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk (2006)
Roberge, Aki, Feldman, Paul D., Weinberger, Alycia J., Deleuil, Magali, Bouret, Jean-Claude
The edge-on disk surrounding the nearby young star Beta Pictoris is the archetype of the "debris disks", which are composed of dust and gas produced by collisions and evaporation of planetesimals,...
Rapid Dissipation of Primordial Gas from the AU Microscopii Debris Disk (2005)
Roberge, Aki, Weinberger, Alycia J., Redfield, Seth, Feldman, Paul D.
The disk around AU Microscopii, an M1 star in the Beta Pictoris Moving Group, is extraordinarily well-suited for comparison to the Beta Pic debris disk (type A5V). We use far-UV absorption...
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...
Roberge, Aki, Weinberger, Alycia J., Malumuth, Eliot M.
We present the first spatially resolved spectrum of scattered light from the TW Hydrae protoplanetary disk. This nearly face-on disk is optically thick, surrounding a classical T Tauri star in the...