Hostname: page-component-848d4c4894-4rdrl Total loading time: 0 Render date: 2024-06-23T22:47:50.593Z Has data issue: false hasContentIssue false

The Possible Role of Radiative Acceleration in Supporting Extended Atmospheres in Be Stars

Published online by Cambridge University Press:  14 August 2015

R. L. Kurucz
Affiliation:
Center for Astrophysics, Harvard College Observatory, and Smithsonïan Astrophysical Observatory Cambridge, Mass., U.S.A.
R. E. Schild
Affiliation:
Center for Astrophysics, Harvard College Observatory, and Smithsonïan Astrophysical Observatory Cambridge, Mass., U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A detailed calculation of the radiative acceleration in B-type stars shows it to be a double-peaked function of effective temperature at small optical depths. The two peaks are shown to coincide approximately with peaks in the distribution of mean Hα emission strength as a function of B - V color in Be stars. These facts suggest that radiation may play an important role in the support of the Be star extended atmosphere.

Type
Part V: Models
Copyright
Copyright © Reidel 1976 

References

Castor, J., Abbott, D., and Klein, R.: 1975, Astrophys. J. 195, 157.Google Scholar
Collins, G. W. II.: 1966, Astrophys. J. 146, 914.Google Scholar
Hayes, D. and Latham, D.: 1975, Astrophys. J. 197, 593.CrossRefGoogle Scholar
Kurucz, R.: 1975, in preparation.Google Scholar
Kurucz, R. and Peytremann, E.: 1975, Smithsonian Astrophysical Observatory Special Report No. 362.Google Scholar
Kurucz, R., Peytremann, E., and Avrett, E.: 1975, Blanketed Model Atmospheres for Early-Type Stars (Washington: Smithsonian Institution Press), 189 pp.Google Scholar
Lucy, L. and Solomon, P.: 1970, Astrophys. J. 159, 879.CrossRefGoogle Scholar
Maeder, A. and Peytremann, E.: 1972, Astron. Astrophys. 21, 279.Google Scholar
Marlborough, J. M. and Zamir, M.: 1975, Astrophys. J. 195, 145.Google Scholar
Peterson, D.: 1968, Smithsonian Astrophysical Observatory Special Report No. 293.Google Scholar
Schild, R. and Romanishin, W.: 1976, Astrophys. J. 204, 493.Google Scholar
Slettebak, A.: 1949, Astrophys. J. 110, 498.Google Scholar
Struve, O.: 1945, Pop. Astron. 53, 201, 259.Google Scholar