Hostname: page-component-745bb68f8f-v2bm5 Total loading time: 0 Render date: 2025-01-24T06:49:59.623Z Has data issue: false hasContentIssue false
  • English
  • Français

Asymptotic Description and the Diagnostic Properties of Low-Degree Stellar P-Modes

Published online by Cambridge University Press:  08 February 2017

I.W. Roxburgh  and
S.V. Vorontsov
I.W. Roxburgh
Affiliation:
Astronomy Unit, Queen Mary and Westfield College, Mile End Road, London E1 4NS, UK
S.V. Vorontsov
Affiliation:
Astronomy Unit, Queen Mary and Westfield College, Mile End Road, London E1 4NS, UK Institute of Physics of the Earth, B. Gruzinskaya 10, Moscow 123810, Russia

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Standard asymptotic descriptions of stellar p-modes use 1/ω as a small parameter; either the degree ℓ is kept constant in the asymptotic expansions (e.g. Tassoul 1980), or the parameter , which specifies the position of the inner turning point (e.g. Vorontsov 1991). At low degree, due to the strong effects of gravity perturbations, these expansions are known to produce rather poor results, even when developed to higher order (Roxburgh and Vorontsov 1994). Here, we employ an alternative asymptotic expansion, capable of providing much better accuracy at low degree-with as a small parameter instead of 1/ω, and test its diagnostic capabilities.

Type
VI. Asteroseismology II
Information
Symposium - International Astronomical Union , Volume 185: New Eyes to See Inside the Sun and Stars , 1998 , pp. 391 - 392
Copyright
Copyright © Kluwer 1998 

References

Tassoul, M. (1980), ApJS 43, p.469 CrossRefGoogle Scholar
Roxburgh, I. W. and Vorontsov, S. V. (1994), Mon. Not. R. astr. Soc. 268, p.143 Google Scholar
Vorontsov, S. V. (1991), SvA 35, p.400 Google Scholar