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HD 207739 - A strange composite starThis star, classified F8 IIe + B:, has a very unusual ultraviolet spectrum, with abnormally strong and numerous absorption features in the far-UV and exceptionally strong Mg II emission. There is some resemblance to shell and pre-main-sequence B stars, but it more closely matches the strange spectra of the eclipsing systems VV Cep and SX Cas, and it probably has considerable circumstellar material at fairly high temperature. HD 207739 is probably an interacting binary and needs to be monitored for light and velocity variations.
Document ID
19830038083
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/183937
Authors
Parsons, S. B. (Computer Sciences Corp. Silver Spring, MD, United States)
Holm, A. V. (Computer Sciences Corp. Astronomy Dept., Silver Spring, MD, United States)
Kondo, Y. (NASA Goddard Space Flight Center Laboratory for Astronomy and Solar Physics, Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Publication Information
Publication: Astrophysical Journal
Subject Category
Astronomy
Accession Number
83A19301
Distribution Limits
Public
Copyright
Other

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