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Truncated Disks in TW Hya Association Multiple Star Systems
Sean M. Andrews, Ian Czekala, D. J. Wilner +3
We present high angular resolution (down to 0.3" = 13 AU in diameter) Submillimeter Array observations of the 880 micron (340 GHz) thermal continuum emission from circumstellar dus…
The Disk Population of the Taurus Star-Forming Region
K. L. Luhman, P. R. Allen, C. Espaillat +2
We have analyzed nearly all images of the Taurus star-forming region at 3.6-24um that were obtained during the cryogenic mission of the Spitzer Space Telescope (46 deg^2) and have…
Disk Evolution in the three Nearby Star-Forming Regions of Taurus, Chamaeleon, and Ophiuchus
E. Furlan, D. M. Watson, M. K. McClure +8
We analyze samples of Spitzer Infrared Spectrograph (IRS) spectra of T Tauri stars in the Ophiuchus, Taurus, and Chamaeleon I star-forming regions, whose median ages lie in the <1…
Far-Ultraviolet H2 Emission from Circumstellar Disks
Laura Ingleby, Nuria Calvet, Edwin Bergin +15
We analyze the far-ultraviolet (FUV) spectra of 33 classical T Tauri stars (CTTS), including 20 new spectra obtained with the Advanced Camera for Surveys Solar Blind Channel (ACS/S…
A Spatially Resolved Inner Hole in the Disk around GM Aurigae
A. Meredith Hughes, Sean M. Andrews, Catherine Espaillat +6
We present 0.3 arcsec resolution observations of the disk around GM Aurigae with the Submillimeter Array (SMA) at a wavelength of 860 um and with the Plateau de Bure Interferometer…
The Differential Rotation of FU Ori
Zhaohuan Zhu, Catherine Espaillat, Kenneth Hinkle +3
The emission of FU Orionis objects in outburst has been identified as arising in rapidly accreting protoplanetary disks, based on a number of observational properties. A fundamenta…