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Highly supersonic bipolar mass ejection from a red giant OH/IR source - OH 0739 - 14From long-slit spectrophotometry of the bipolar nebula associated with the unusual OH source, OH 0739 - 14, the presence of a blue companion to the M9 III central star was shown and a Herbig-Haro-like knot beyond each nebular lobe was discovered. From differential colors of the lobes and from radial velocities of these knots it was demonstrated that the system inclines its northern lobe in the forward direction. It was also shown that the nebulous knots are shocks being driven into an extensive circumstellar envelope, and that this material is very overabundant in nitrogen, suggesting that it is matter lost from a star of mass greater than 3 solar masses. A model of biconical ejection from a central binary is consistent with the OH observations, and a possible relation of OH 0739 - 14 to the symbiotic stars and to bipolar planetary nebulae is suggested.
Document ID
19860028999
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cohen, M.
(California, University, Berkeley; NASA, Ames Research Center Moffett Field, CA, United States)
Dopita, M. A.
(Mount Stromlo and Siding Spring Observatories Canberra, Australia)
Schwartz, R. D.
(Missouri, University St. Louis, United States)
Tielens, A. G. G. M.
(California, University Berkeley, United States)
Date Acquired
August 12, 2013
Publication Date
October 15, 1985
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 297
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
86A13737
Distribution Limits
Public
Copyright
Other

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