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UV chromospheric and circumstellar diagnostic features among F supergiant starsA survey of F supergiant stars to evaluate the extension of chromospheric and circumstellar characteristics commonly observed in the slightly cooler G, K, and M supergiant is discussed. An ultraviolet survey was elected since UV features of Mg II and Fe II might persist in revealing outer atmosphere phenomena even among F supergiants. The encompassed spectral types F0 to G0, and luminosity classes Ib, Ia, and Ia-0. In addition, the usefulness of the emission line width-to-luminosity correlation for the G-M stars in both the Ca II and Mg II lines is examined.
Document ID
19810017390
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stencel, R. E. (Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Worden, S. P. (Sacramento Peak Observatory Tucson, United States)
Giampapa, M. S. (Arizona Univ.)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: NASA. Goddard Space Flight Center The Universe at Ultraviolet Wavelengths: The First Two Yrs. of Intern. Ultraviolet Explorer
Subject Category
Astrophysics
Accession Number
81N25926
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19810017357Collected WorksThe Universe at Ultraviolet Wavelengths: The first two years of International Ultraviolet Explorer19810017357Collected WorksThe Universe at Ultraviolet Wavelengths: The first two years of International Ultraviolet Explorer
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