Astrophysics and Space Science

, Volume 174, Issue 2, pp 321–325 | Cite as

A discussion on the classification and evolution of symbiotic stars

  • Parag Seal
Letter to the Editor

Abstract

A H-R diagram is drawn from the bolometric luminosities and effective temperatures of 24 symbiotic stars and compared with theoretical evolutionary tracks of Population I metal-rich stars. It is shown that the S-type and D-type symbiotic stars are classified very clearly in course of their evolution and it is suggested that it depends on their cool components, whether it is a normal giant or an asymptotic giant branch star. The recurrent novae are less evolved than classical novae or symbiotic novae.

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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Parag Seal
    • 1
  1. 1.Kapteyn LaboratoriumGroningenThe Netherlands

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