Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725504m&link_type=abstract
American Astronomical Society, AAS Meeting #217, #255.04; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We present Herschel PACS spectra of Spitzer identified protostars in the Orion molecular clouds, obtained as part of the Herschel Orion Protostar Survey (HOPS). HOPS is a 200-hour Herschel open-time key program which will obtain PACS photometry at 70 and 160 microns for 286 protostars and PACS spectra from 55 to 210 microns for 36 protostars. We will use the Spitzer IRAC/MIPS and PACS photometry and SED modeling to characterize the envelope and disk properties and the evolutionary states of the Orion protostars. The spatial distribution and excitation states of the fine structure lines such as [OI] and [CII] and molecular lines such as H2O, OH and CO in the PACS spectra will be used to study the physical conditions and heating mechanisms in the envelopes and outflows in protostars. Complementing the PACS spectra with high resolution Spitzer IRS spectra, we will measure various flow rates in these protostellar systems and study the jet/outflow feedback onto the surrounding molecular material.
Ali Babar
Fischer William J.
HOPS Team
Manoj Puravankara
Megeath Thomas
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