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The detection of ionized helium and carbon in the pulsating DB degenerate GD358Echelle observations of GD358, prototype of the class of six known pulsating DB stars and one of the hottest DB stars, are presented. Evidence for the existence of He II and C II is demonstrated. The Ly-alpha + He II region reveals no clear evidence of absorption wings flanking the geocoronal emission. The significance of the He II detection is discussed.
Document ID
19900045724
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sion, Edward M. (Villanova University PA, United States)
Liebert, James (Steward Observatory Tucson, AZ, United States)
Vauclair, Gerard (Toulouse Observatoire, France)
Wegner, Gary (Dartmouth College Hanover, NH, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Astrophysics
Meeting Information
Meeting: IAU Colloquium
Location: Hanover, NH
Country: United States
Start Date: August 15, 1988
End Date: August 19, 1988
Accession Number
90A32779
Funding Number(s)
CONTRACT_GRANT: NSF AST-88-40482
CONTRACT_GRANT: NSF AST-85-15219
CONTRACT_GRANT: NAG5-343
CONTRACT_GRANT: NSF AST-88-02689
Distribution Limits
Public
Copyright
Other

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