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Title:
Highly ionized stellar winds in Be stars. II - Winds in B6-B9.5e stars
Authors:
Grady, C. A.; Bjorkman, K. S.; Snow, T. P.; Sonneborn, George; Shore, Steven N.; Barker, Paul K.
Affiliation:
AA(NASA, Goddard Space Flight Center; Computer Sciences Corp., Greenbelt, MD), AB(NASA, Goddard Space Flight Center; Computer Sciences Corp., Greenbelt, MD), AC(Colorado, University, Boulder), AD(Colorado, University, Boulder), AE(New Mexico Institute of Mining and Technology, Socorro)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 1, 1989, p. 403-419. (ApJ Homepage)
Publication Date:
04/1989
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
B Stars, Stellar Envelopes, Stellar Luminosity, Stellar Winds, Ultraviolet Spectra, Iue, Sky Surveys (Astronomy), Stellar Mass Ejection, Stellar Rotation
DOI:
10.1086/167306
Bibliographic Code:
1989ApJ...339..403G

Abstract

The results of a UV survey of stellar winds and circumstellar shells in 40 B6-B9.5e stars covering luminosity classes V-III are presented. A graph is presented of the region from 1520-1560 A, which includes both the Si II UV multiplet 2 transitions and the C IV resonance transition for selected Be stars in the sample. The detection of shortward-shifted discrete component absorption features in nine of the program stars suggests that the material is produced in a stellar wind, which attains velocities of at least a few hundred km/s.

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