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B[e] Stars pp 277-281 | Cite as

A Revised Classification Scheme for B[e] Stars

  • Henny J. G. L. M. Lamers
  • Franz-Josef Zickgraf
  • Dolf De Winter
  • Leo Houziaux
  • Janez Zorec
Chapter
Part of the Astrophysics and Space Science Library book series (ASSL, volume 233)

Abstract

We review the classification criteria for the B[e] stars. These criteria can be met in different kinds of stars of different evolutionary phases. We propose a new definition of five classes of stars which show the B[e] phenomenon, with names that indicate the evolutionary phase:
  1. (a)

    B[e] supergiants or “sgB[e] stars”

     
  2. (b)

    pre-main sequence B[e]-type stars or “HAeB[e] stars”

     
  3. (c)

    compact planetary nebulae B[e]-type stars or “cPNB[e] stars”

     
  4. (d)

    symbiotic B[e]-type stars or “SymB[e] stars”

     
  5. (e)

    unclassified B[e]-type stars or “unclB[e] stars”

     

If a star meets the criteria of more than one of the classes (a), (b), (c) and (d) it is automatically assigned to class unclB[e].1

Keywords

Main Sequence Radiative Force Planetary Nebula Type Star Polar Wind 
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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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • Henny J. G. L. M. Lamers
    • 1
    • 2
  • Franz-Josef Zickgraf
    • 3
  • Dolf De Winter
    • 4
  • Leo Houziaux
    • 5
  • Janez Zorec
    • 6
  1. 1.Astronomical InstituteUtrecht UniversityUtrechtThe Netherlands
  2. 2.SRON Laboratory for Space ResearchUtrechtThe Netherlands
  3. 3.Observatoire de StrasbourgStrasbourgFrance
  4. 4.Dpto. Física Teórica, C-XI, Facultad de CienciasUniversidad Autónoma de MadridCantoblanco, MadridSpain
  5. 5.Dept d’AstrophysiqueUniversité de Mons-HainautMonsBelgium
  6. 6.Institute, d’Astrophysique de ParisC.N.R.S.ParisFrance

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