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Infrared reflection nebulae in Orion Molecular Cloud 2New observations of Orion Molecular Cloud 2 have been made from 1 to 100 microns using the NASA Infrared Telescope Facility and the Kuiper Airborne Observatory. An extensive program of polarimetry, photometry, and spectrophotometry has shown that the extended emission regions associated with two of the previously known near-infrared sources, IRS 1 and IRS 4, are infrared reflection nebulae, and that the compact sources IRS 1 and IRS 4 are the main luminosity sources in the cloud. The constraints from the far-infrared observations and an analysis of the scattered light from the IRS 1 nebula show that OMC-2/IRS 1 can be characterized by L of 500 solar luminosities or less and T of roughly 1000 K. The near-infrared albedo of the grains in the IRS 1 nebula is greater than 0.08.
Document ID
19870039556
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Pendleton, Yvonne
(NASA Ames Research Center Moffett Field, CA, United States)
Werner, M. W.
(NASA Ames Research Center Moffett Field, CA, United States)
Capps, R.
(Hawaii, University Honolulu, United States)
Lester, D.
(Texas, University Austin, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1986
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 311
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
87A26830
Funding Number(s)
CONTRACT_GRANT: NAG2-67
Distribution Limits
Public
Copyright
Other

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