Accuracy of the relativistic Cowling approximation in slowly rotating stars

Shijun Yoshida, Yasufumi Kojima

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

We have calculated the non-radial oscillation in slowly rotating relativistic stars using the Cowling approximation. The frequencies are compared with those based on the complete linearized equations of general relativity. It is found that the results with the approximation differ by less than about 20 per cent for typical relativistic stellar models. The approximation is more accurate for higher order modes as in the Newtonian case.

Original languageEnglish
Pages (from-to)117-122
Number of pages6
JournalMonthly Notices of the Royal Astronomical Society
Volume289
Issue number1
DOIs
Publication statusPublished - 1997
Externally publishedYes

Keywords

  • Stars: neutron
  • Stars: oscillations

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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