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Be stars in the ultraviolet spectral classification system

Published online by Cambridge University Press:  26 May 2016

Janet Rountree  and
George Sonneborn
Janet Rountree
Affiliation:
Science Applications International Corporation, Tucson Arizona
George Sonneborn
Affiliation:
NASA Goddard Space Flight Center, Greenbelt Maryland

Extract

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Rountree and Sonneborn (1991) developed a system for the classification of ultraviolet B-star spectra, using MK standards drawn from the optical region. The observational material consisted of high-dispersion spectra obtained with the Short Wavelength Prime (SWP) camera on the International Ultraviolet Explorer (IUE) spacecraft. The classification criteria were based exclusively on photospheric absorption lines, primarily lines of C III, Si II, and Si III. The stellar wind lines of Si IV, C IV, and N V were not used in the classification.

Type
5. Be Stars: Spectroscopy and Photometry
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 275 - 276
Copyright
Copyright © Kluwer 1994 

References

Grady, C. A., Bjorkman, K. S., and Snow, T. P.: 1987, Astrophysical Journal 320, 376 Google Scholar
Rountree, J., and Sonneborn, G.: 1991, Astrophysical Journal 369, 515 CrossRefGoogle Scholar
Rountree, J., and Sonneborn, G.: 1993, “Spectral Classification with the International Ultraviolet Explorer: An Atlas of B-Type Spectra” (NASA Reference Publication),Google Scholar