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Spectroscopic evidence for infall around an extraordinary IRAS source in OphiuchusMillimeter-wave continuum observations and spectral line observations of the J = 5-4 and J = 2-1 transitions of CS toward IRAS 16293-2422, an extremely cold infrared source associated with a high-velocity molecular outflow in the Rho Ophiuchi molecular cloud, are reported. The observations indicate that this source is a dust-enshrouded object embedded in a dense, elongated configuration of molecular gas whose major axis is roughly orthogonal to the direction of the double bipolar outflow observed in it. The observations appear to provide spectroscopic evidence for significant mass infall motions associated with a young stellar object, and suggest that IRAS 16293-2422 is a true protostar.
Document ID
19870033208
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Walker, Christopher K.
(Arizona Univ. Tucson, AZ, United States)
Lada, Charles J.
(Arizona Univ. Tucson, AZ, United States)
Young, Erick T.
(Steward Observatory Tucson, AZ, United States)
Maloney, Philip R.
(Arizona, University Tucson, United States)
Wilking, Bruce A.
(Missouri, University Saint Louis, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1986
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 309
ISSN: 0004-637X
Subject Category
Astrophysics
Report/Patent Number
ISSN: 0004-637X
Accession Number
87A20482
Funding Number(s)
CONTRACT_GRANT: NAGW-763
Distribution Limits
Public
Copyright
Other

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