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CO (v = 1-0) emission in the molecular shock regions of OMC-1Using the new Aerospace spectrometer on the Kuiper Airborne Observatory, we have obtained observations of the molecular shocks associated with OMC-1. Unexpectedly these observations reveal (b = 1-0) emission from CO at 4.6 microns superposed on a strong continuum. Our observations strongly suggest that both the emission feature and the continuum are produced in molecular shocks. Since the (v = 1-0) band of CO is only excited in high-velocity shocks, we may be observing for the first time the primary driving mechanism in these regions. Even if these features are produced by scattering, the characteristics will provide new constraints on the conditions in and the geometry of the shock regions.
Document ID
19930026527
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Grasdalen, G. L.
(G-Star Enterprises Denver, CO, United States)
Hackwell, John A.
(NASA Ames Research Center Moffett Field, CA, United States)
Lynch, David K.
(NASA Ames Research Center Moffett Field, CA, United States)
Russell, Ray W.
(Aerospace Corp. Los Angeles, CA, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1992
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 397
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A10524
Funding Number(s)
CONTRACT_GRANT: NAS2-13331
Distribution Limits
Public
Copyright
Other

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