NOAO > Observing Info > Approved Programs > 2010B-0498
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NOAO > Observing Info > Approved Programs > 2010B-0498 |
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PI: Lori Allen, NOAO, lallen@noao.edu
Address: n/a, 950 N. Cherry Ave, Tucson, AZ 85719, USA
CoI: Tom Megeath, University of Toledo
CoI: John Tobin, University of Michigan
CoI: Charles Poteet, University of Toledo
CoI: Will Fischer, University of Toledo
CoI: Lee Hartmann, University of Michigan
CoI: Nuria Calvet, University of Michigan
Title: High Resolution Imaging of Orion protostars
Abstract:
We propose WHIRC/WTTM imaging to resolve scattered light emission
from 80 protostars in Orion. These observations are part of an
unprecedented multi-wavelength study of 300 protostars in the Orion
molecular cloud complex; the largest population of protostars within 500
pc of the Sun. The protostars are being studied through Spitzer imaging
and spectroscopy, and we have been awarded 200 hours for far-IR imaging
and spectroscopy with the Herschel space observatory. High resolution
near-IR imaging plays a critical role by detecting and resolving light
scattered in the infalling protostellar envelope, thus providing the
only direct observations of the morphology of the inner envelope, the
opening angle of outflows carved by winds, and the inclination of the
envelope. Binaries can also be detected and resolved. Near-IR imaging
provides critical information needed to model the SEDs and obtain the
fundamental protostar properties such as infall rate, angular momentum
and luminosity. The combined multi-wavelength observations will produce
a unprecendented data set for guiding and testing theories of
protostellar evolution and for understanding the role of environment in
protostellar evolution.
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 > 2010B-0498 |
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