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NLTE spectral analysis of GW Vir pulsators

E. Reiff·D. Jahn·T. Rauch·K. Werner·J. W. Kruk·F. Herwig
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Abstract

GW Vir variables are the pulsating members in the spectroscopic class of PG 1159 stars. In order to understand the characteristic differences between pulsating and non-pulsating PG 1159 stars, we analyse FUSE spectra of eleven objects, of which six are pulsating, by means of state-of-the-art NLTE model atmospheres. The numerous metal lines in the FUV spectra of these stars allow a precise determination of the photospheric parameters. We present here preliminary results of our analysis.

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E. Reiff, D. Jahn, T. Rauch, K. Werner, J. W. Kruk, F. Herwig. 2006-01-25. NLTE spectral analysis of GW Vir pulsators. https://arxiv.org/abs/astro-ph/0601566

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