Asteroseismic Analysis of Pulsating Subdwarf B Stars
- 1 January 2002
- journal article
- Published by Cambridge University Press (CUP) in International Astronomical Union Colloquium
- Vol. 185, 364-367
- https://doi.org/10.1017/s0252921100016511
Abstract
We briefly present a method to perform detailed asteroseismological analyses of pulsating subdwarf B (sdB) stars (also referred to as the EC14026 stars). We use a forward approach based on the computation of large grids of sdB stellar models (each model being analyzed with a linear nonadiabatic pulsation code) to derive, in an objective way, the most appropriate set of model parameters that can best reproduce the observed period spectrum of a given sdB pulsator. We discuss an illustrative application of this method to the pulsating sdB star PG 1047+003, for which we derive the fundamental parameters Teff, logg, Mtot, and Menv.Keywords
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