Indication of singly ionized helium in the white dwarf GD 229

Matthew D. Jones, Gerardo Ortiz, David M Ceperley

Research output: Contribution to journalArticlepeer-review

Abstract

We comment on the applicability of the stationary line argument recently used by Jordan et al. (1998) to account for the unusual absorption features in the observed optical spectra of GD 229. Moreover, we provide an alternative explanation based upon the existence of neutral and singly ionized atomic helium atoms as the main elements comprising the atmosphere of this magnetized white dwarf star. :.

Original languageEnglish (US)
JournalAstronomy and Astrophysics
Volume343
Issue number3
StatePublished - Dec 1 1999

Keywords

  • Stars: individual: GD 229
  • Stars: individual: LB 11146B
  • Stars: Magnetic fields
  • Stars: white dwarfs

ASJC Scopus subject areas

  • Space and Planetary Science

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