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Ultraviolet spectrophotometry of degenerate starsObservations of one helium- and three hydrogen-atmosphere degenerates made with the International Ultraviolet Explorer are discussed. Fluxes in the UV give temperatures in good accordance with those determined from the ground and from the ANS satellite data. Profiles of the strong L-alpha absorption in two DA's fit predictions for the expected temperatures. Gravity determination is vitiated by their steep temperature dependence. If one accepts that theoretical predictions should be correct, corrections to the absolute IUE calibration derived are an upward shift of 3-5%, with irregular residuals attaining + or - 7%.
Document ID
19790050226
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Greenstein, J. L.
(Hale Observatories Pasadena, CA, United States)
Oke, J. B.
(Hale Observatories Pasadena, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1979
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
79A34239
Distribution Limits
Public
Copyright
Other

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