On the excitation of PG 1159-type pulsations

A. Gautschy, L. G. Althaus, H. Saio

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Stability properties are presented of dipole and quadrupole nonradial oscillation modes of model stars that experienced a late helium shell flash on their way to the white-dwarf cooling domain. The computed instability domains are compared with the observed hot variable central stars of planetary nebulae and the GW Vir pulsators.

Original languageEnglish
Pages (from-to)1013-1020
Number of pages8
JournalAstronomy and Astrophysics
Volume438
Issue number3
DOIs
Publication statusPublished - 2005 Aug

Keywords

  • Stars: evolution
  • Stars: oscillations
  • Stars: white dwarfs

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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