Hostname: page-component-76fb5796d-vvkck Total loading time: 0 Render date: 2024-04-26T22:44:19.190Z Has data issue: false hasContentIssue false
  • English
  • Français

Nonradial Pulsations and the Be Phenomenon

Published online by Cambridge University Press:  19 July 2016

Dietrich Baade
Dietrich Baade*
Affiliation:
Space Telescope-European Coordinating Facility, European Southern Observatory, Karl-Schwarzschild-Str. 2, D-8046 Garching, W. Germany

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.

Following a summary of the observations which suggest that the outbursts of classical Be stars are caused by nonradial pulsations, properties, implications and requirements of a model based on this notion are evaluated. A preliminary analysis of new observations of μ Cen is presented which for the first time in a Be star reveals two relatively closely spaced non–commensurate periods. Such a result would render implausible speculations that the variability of Be stars is due to corotating surface features.

Type
IV. Spectroscopic Patterns of Stellar Atmospheres
Information
Symposium - International Astronomical Union , Volume 132: The Impact of Veryhigh S/N Spectroscopy on Stellar Physics , 1988 , pp. 217 - 222
Copyright
Copyright © Kluwer 1988 

References

Ando, H.: 1986, Astron. Astrophys. 163, 97.Google Scholar
Baade, D.: 1984, Astron. Astrophys. 135, 101.Google Scholar
Baade, D.: 1986, in Highlights of Astronomy, Swings, J.–P. ed., D. Reidel, Dordrecht, Vol. 7, p. 255.CrossRefGoogle Scholar
Baade, D.: 1987a, in Proc. IAU Coll. No. 98 Physics of Be Stars, Slettebak, A. and Snow, T. P. (eds.), Cambridge Univ. Press, Cambridge, p. 361.Google Scholar
Baade, D.: 1987b, Be Star Newsletter No. 15, 18.Google Scholar
Baade, D., Dachs, J., van de Weygaert, R., Steeman, F.: 1988, to be submitted to Astron. Astrophys. Google Scholar
Balona, L.A., Engelbrecht, C.A.: 1986, Mon. Not. R. Astr. Soc. 219, 131.CrossRefGoogle Scholar
Balona, L.A., Engelbrecht, C.A., Marang, F.: 1987, Mon. Not. R. astr. Soc. 227, 123.Google Scholar
Barker, P.K.: 1987, in Proc. IAU Coll. No. 98 Physics of Be Stars, Slettebak, A. and Snow, T. P. (eds.), Cambridge Univ. Press, Cambridge, p. 38.Google Scholar
Clarke, D., McGale, P.A.: 1987, in Proc. IAU Coll. No. 98 Physics of Be Stars, Slettebak, A. and Snow, T. P. (eds.), Cambridge Univ. Press, Cambridge, p. 197.Google Scholar
Gies, D.R., Kullavanijaya, A.: 1987, Astrophys. J., submitted.Google Scholar
Harmanec, P.: 1984, Bull. Astron. Inst. Czechoslov. 35, 193.Google Scholar
Osaki, Y.: 1986, Publ. Astron. Soc. Pacific 98, 30.CrossRefGoogle Scholar
Penrod, G.D.: 1986, Publ. Astron. Soc. Pacific 98, 35.Google Scholar
Penrod, G.D.: 1987, in Proc. IAU Coll. No. 98 Physics of Be Stars, Slettebak, A. and Snow, T. P. (eds.), Cambridge Univ. Press, Cambridge, p. 463.Google Scholar
Percy, J.: 1987, in Proc. IAU Coll. No. 98 Physics of Be Stars, Slettebak, A. and Snow, T. P. (eds.), Cambridge Univ. Press, Cambridge, p. 49.Google Scholar
Sareyan, J.P., Alvarez, M., Chauville, J., Le Contel, J.M., Michel, R., Ballereau, D.: 1987, in Proc. IAU Coll. No. 98 Physics of Be Stars, Slettebak, A. and Snow, T. P. (eds.), Cambridge Univ. Press, Cambridge, p. 78.Google Scholar
Slettebak, A.: 1982, Astrophys. J. Suppl. 50, 55.Google Scholar
Smith, M.A., Penrod, G.D.: 1984, in Relations between Chromospheric–coronal Heating and Mass Loss in Stars, Stalio, R. and Zirker, J. B. (eds.), Trieste, p. 394.Google Scholar
Smith, M.A.: 1986, in Hydrodynamic and Magnetohydrodynamic Problems in the Sun and Stars, Osaki, Y. (ed.), Univ. of Tokyo Press, Tokyo, p. 145.Google Scholar
Struve, O.: 1931, Astrophys. J. 73, 94.CrossRefGoogle Scholar
Vogt, S.S, Penrod, G.D.: 1983, Astrophys. J. 275, 661.CrossRefGoogle Scholar