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B[e] Stars pp 141-143 | Cite as

Long-Term Spectrophotometric Behaviour of B[e] Stars

  • A. Moujtahid
  • J. Zorec
  • A. M. Hubert
Chapter
  • 110 Downloads
Part of the Astrophysics and Space Science Library book series (ASSL, volume 233)

Abstract

Classic Be stars show characteristic linear relations between luminosity excess and intrinsic reddening in the visible range against the total Balmer discontinuity (BD) (6). These relations differ according to whether the star is in a “Be“ or a “Be-shell“ phase, so that the limit between the two spec-trophotometric behaviours (SPB) may be used to infer a rough spectral type of the underlying star. As circumstellar dust absorption cannot strongly affect BD determination, it is worth trying to identify some kind of a break between Be-like and Be-shell-like behaviour in B[e] stars produced by the gaseous circumstellar envelope, for their spectral type is difficult to estimate otherwise.

Keywords

Optical Depth Spectral Type Dust Absorption Continuum Emission Band Versus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • A. Moujtahid
    • 1
  • J. Zorec
    • 2
  • A. M. Hubert
    • 1
  1. 1.Observatoire de Paris-MeudonMeudon Principal. CedexFrance
  2. 2.Institut d’Astrophysique-CNRSParisFrance

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