Evans, Neal J., Dunham, Michael M., Jørgensen, Jes K., Enoch, Melissa L., Merín, Bruno, Van Dishoeck, Ewine F., ...
Evans II, Neal J., Dunham, Michael M., Jørgensen, Jes K., Enoch, Melissa L., Merín, Bruno, Van Dishoeck, Ewine F., ...
(Abridged) The c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. This paper combines information drawn from...
Padgett, Deborah L., Rebull, Luisa M., Stapelfeldt, Karl R., Chapman, Nicholas, Lai, Shih-Ping, Mundy, Lee G., ...
We present maps of 14.4 deg^2 of the Ophiuchus dark clouds observed by the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). These high-quality maps depict both numerous point...
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...
To appear in The Astrophysical Journal Letters Dust emission from protostars: the disk and (2007)
Envelope Of Hhmms, Claire J. Ch, David W. Koerner, Anneila I. Sargent
Circumstellar disks appear to be a natural by-product of star formation. They probably form at a very early stage, reducing angular momentum in the collapsing core and allowing accretion onto the...
Padgett, Deborah L., Rebull, Luisa M., Stapelfeldt, Karl R., Chapman, Nicholas L., Lai, Shih-Ping, Mundy, Lee G., ...
We present maps of 14.4 deg^2 of the Ophiuchus dark clouds observed by the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). These high quality maps depict both numerous point...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. IV. Lupus Observed with MIPS (2007)
Chapman, Nicholas L., Lai, Shih-Ping, Mundy, Lee G., Brooke, Timothy Y., Cieza, Lucas A., ...
We present maps of 7.78 deg^2 of the Lupus molecular cloud complex at 24, 70, and 160 μm. They were made with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) instrument...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. IV. Lupus Observed with MIPS (2007)
Chapman, Nicholas L., Lai, Shih-Ping, Mundy, Lee G., Evans II, Neal J., Brooke, Timothy Y., Cieza, Lucas A., ...
We present maps of 7.78 square degrees of the Lupus molecular cloud complex at 24, 70, and $160\:\mu$m. They were made with the Spitzer Space Telescope's Multiband Imaging Photometer for Spitzer...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds VIII. Serpens Observed with MIPS (2007)
Harvey, Paul M., Rebull, Luisa M., Brooke, Tim, Spiesman, William J., Chapman, Nicholas, Huard, Tracy L., ...
We present maps of 1.5 square degrees of the Serpens dark cloud at 24, 70, and 160\micron observed with the Spitzer Space Telescope MIPS Camera. More than 2400 compact sources have been extracted at...
The Spitzer c2d Survey of Nearby Dense Cores. IV. Revealing the Embedded Cluster in B59 (2007)
Brooke, Timothy Y., Huard, Tracy L., Bourke, Tyler L., Boogert , A. C. Adwin, Allen, Lori E., Blake, Geoffrey A., ...
Infrared images of the dark cloud core B59 were obtained with the Spitzer Space Telescope as part of the "Cores to Disks" Legacy Science project. Photometry from 3.6-70 μm indicates at least 20...
Porras, Alicia, Jørgensen, Jes K., Allen, Lori E., Evans II, Neal J., Bourke, Tyler L., Alcal{á}, Juan M., ...
We present IRAC (3.6, 4.5, 5.8, and 8.0 micron) observations of the Chamaeleon II molecular cloud. The observed area covers about 1 square degree defined by $A_V >2$. Analysis of the data in the 2005...
The Spitzer c2d Survey of Nearby Dense Cores: IV. Revealing the Embedded Cluster in B59 (2006)
Brooke, Timothy Y., Huard, Tracy L., Bourke, Tyler L., Boogert, A. C. Adwin, Allen, Lori E., Blake, Geoffrey A., ...
Infrared images of the dark cloud core B59 were obtained with the Spitzer Space Telescope as part of the "Cores to Disks" Legacy Science project. Photometry from 3.6-70 microns indicates at least 20...
A New Brown Dwarf Desert? A Scarcity of Wide Ultracool Binaries (2006)
Allen, Peter R., Koerner, David W., McElwain, Michael W., Cruz, Kelle L., Reid, I. Neill
We present the results of a deep-imaging search for wide companions to low-mass stars and brown dwarfs using NSFCam on IRTF. We searched a sample of 132 M7-L8 dwarfs to magnitude limits of $J \sim...
The Spitzer c2d survey of large, nearby, interstellar clouds. III. Perseus observed with IRAC (2006)
Jørgensen, Jes K., Harvey, Paul M., Huard, Tracy L., Allen, Lori E., Porras, Alicia, ...
We present observations of 3.86 deg to the 2nd of the Perseus molecular cloud complex with the Spitzer Space Telescope Infrared Array Camera (IRAC). The maps show strong extended emission arising...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. III. Perseus Observed with IRAC (2006)
Jorgensen, Jes K., Harvey, Paul M., Evans II, Neal J., Huard, Tracy L., Allen, Lori E., Porras, Alicia, ...
We present observations of 3.86 sq. deg. of the Perseus molecular cloud complex with the Spitzer Space Telescope Infrared Array Camera (IRAC). The maps show strong extended emission arising from...
Dust Emission from Photostars: The disk and Envelope of HH24MMS (2004)
High-resolution imaging of the protostar HH24MMS at wavelengths of 7 mm and 3.4 mm shows
Aperture Synthesis Imaging of the Circumstellar Dust Disk Around DO Tauri (2004)
We have detected the T Tauri star, DO Tauri, in a 0.6"-resolution VLA map of 43.3 GHz (l = 7 mm) continuum emission. Upper limits to the flux densities at 8.4 and 22.5 GHz limit the contribution of...
Jenson, Eric L.N., Koerner, David W., Mathieu, Robert D.
We present (Lamda)=1.3 and 3mm aperture sysnthesis imaging of the multiple T Tauri system UZ Tauri.
Spitzer Space Telescope spectroscopy of ices toward low-mass embedded protostars (2004)
Boogert, A. C. Adwin, Pontoppidan, Klaus M., Lahuis, Fred, Jørgensen, Jes K., Augereau, Jean-Charles, Blake, Geoffrey A., ...
Young, Chadwick H., Jørgensen, Jes K., Shirley, Yancy L., Kauffmann, Jens, Huard, Tracy, Lai, Shih-Ping, ...
Continuum and CO/HCO+ Emission from the Disk Around the T Tauri Star LkCa 15 (2003)
Qi, Chunhua, Kessler, Jacqueline E., Koerner, David W., Sargent, Anneila I., Blake, Geoffrey A.
We present OVRO Millimeter Array lambda = 3.4 - 1.2 mm dust continuum and spectral line observations of the accretion disk encircling the T Tauri star LkCa 15. The 1.2 mm dust continuum emission is...
Near-infrared coronagraphic imaging of the circumstellar disk around TW Hydrae (2001)
Trilling, David E., Koerner, David W., Barnes, Jason W., Ftaclas, Christ, Brown, Robert H.
We present ground-based near-infrared (H-band) imaging of the circumstellar disk around the nearby classical T Tauri star TW Hydrae. The scattered light image shows a face-on disk with radius 4...
Observations of Circumstellar Disks (2001)
The imaging of disks around young stars presents extreme challenges in high dynamic range, angular resolution, and sensitivity. Recent instrumental advances have met these challenges admirably,...
Evolution of Gas and Dust in Circumstellar Disks (1999)
A clear understanding of the chemical processing of matter, as it is transferred from a molecular cloud to a planetary system, depends heavily on knowledge of the physical conditions endured by gas...
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...