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High-velocity interstellar gas in the lines of sight to the Wolf-Rayet stars HD 97152 and HD 96548The interstellar medium was studied in the direction to the WR stars HD 96548 and HD 97152, and the results are reported. New observational data on the UV spectra of several field stars near both these WR stars are presented. The high-velocity gas seen in the spectra of these stars suggests that the detected expanding interstellar gas structure consists of two OB cluster supershells. The presence of high-velocity absorption components in one of five field star spectra in the direction of the more isolated WR star HD 96548 suggests that this expanding gas does not originate from the optical ring nebula RCW 58 surrounding HD 96548, as previously believed, but instead indicates the detection of a previously unknown expanding interstellar shell in this line of sight.
Document ID
19900043877
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Nichols-Bohlin, Joy
(NASA Goddard Space Flight Center; IUE Observatory Greenbelt, MD, United States)
Fesen, Robert A.
(Colorado, University Boulder, United States)
Date Acquired
August 14, 2013
Publication Date
April 10, 1990
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 353
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
90A30932
Funding Number(s)
CONTRACT_GRANT: NAS5-31436
CONTRACT_GRANT: NAS5-28729
Distribution Limits
Public
Copyright
Other

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