NOAO > Observing Info > Approved Programs > 2012A-0477
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NOAO > Observing Info > Approved Programs > 2012A-0477 |
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PI: Dan Li, University of Florida, dli@astro.ufl.edu
Address: Department of Astronomy, PO Box 112055, 211 Bryant Space Science Center, Gainesville, FL, 32611-2055, USA
CoI: Charles Telesco, University of Florida
Title: Probing the protoplanetary disk of TW Hya with T-ReCS
Abstract:
We propose deep Q band imaging of the protoplanetary disk of TW Hya. Being
one of the nearest T Tauri stars with a relatively massive protoplanetary
disk, TW Hya provides an ideal sample for the studies of disk evolution and
planet formation. Previous analysis of the SED suggests that a dust-free,
optically thin region exists around the center of its disk. To date, most
effort has been made to probe this innermost region (r < 4 AU), attempting to
determine the causes of the inner hole and their implications on the on-going
planet formation. The properties of the outer disk (20 < r < 200 AU),
however, lack tight observing constraints. With T-ReCS deep Q band imaging,
which traces the dust continuum emission originating in the surface layer
and/or the deeper regions of the disk, we expect to obtain useful clues on
the large-scale properties (e.g., disk morphology, surface brightness
profile, etc.) of the disk. We request a total of 3.23 hours for this
program.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2012A-0477 |
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