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Far-ultraviolet energy distributions of the metal-poor A stars HD 109995 and HD 161817Low-resolution IUE spectra at wavelengths between 1300 and 3400 A of the metal-poor stars HD 109995 (A1p) and HD 161817 (A4p) have been compared with model-atmosphere energy distributions computed by Kurucz (1979). Good overall agreement is found. Effective temperatures, metal abundances, and angular diameters could be determined. Assuming an absolute visual magnitude of 0.7, the previously determined gravity log = 3 yields masses of 0.5 solar masses for both stars. It is found that the theoretical UBV colors calculated earlier agree reaonably well with the ones observed for these stars.
Document ID
19810041891
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Boehm-Vitense, E.
(Washington, University Seattle, Wash., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
81A26295
Funding Number(s)
CONTRACT_GRANT: NSG-5398
Distribution Limits
Public
Copyright
Other

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