Computer Science
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010noao.prop..498a&link_type=abstract
NOAO Proposal ID #2010B-0498
Computer Science
Scientific paper
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.
Allen Lori
Calvet Nuria
Fischer Will
Hartmann Lee
Megeath Tom
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