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Journal of Astrophysics and Astronomy

, Volume 2, Issue 4, pp 387–403 | Cite as

Rotation and luminosity variations in post-main sequence stars

  • Paul J. Wiita
Article
  • 18 Downloads

Abstract

Previous first-order analytic treatments of rotation acting upon stellar equilibria are extended to include later, post-Helium burning, stages of stellar evolution. Strong differential rotation is capable of substantially increasing the photon luminosities of post-main sequence stars, and thus accelerating their evolution. On the other hand, uniform rotation reduces the photon flux for a wide range of stellar interior types and conditions. Similar conclusions are drawn regarding the effects of rotation on the emission of neutrinos in pre-collapse phases of evolution. A brief discussion of the gravitational radiation emitted during these phases is also given.

Key words

rotating stars post-main sequence evolution neutrino emission gravitational radiation 

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Copyright information

© Indian Academy of Sciences 1981

Authors and Affiliations

  • Paul J. Wiita
    • 1
  1. 1.Theoretical Astrophysics GroupTata Institute of Fundamental ResearchBombay

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