Thermal instability in DAV stars

Details Thermal instability in DAV stars Thermal instability in DAV stars

Jan 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cienc..16...46l&link_type=abstract

Revista Ciencia, Vol. 16, p. 46, ISSN 1315-2076

Physics

Interior, Stars, Variability, White Dwarfs

Scientific paper

The short period of the fluctuations of stars DAV, in the order of the hun dreds of seconds; the modes of luminosity oscillation's to constant radio, and the non existence of fusion processes in such stars invite elaboration of models in the formalism of Mixing Length Theory of Convection(MLT). In the present work a mechanism of luminosity variation in DAV stars based on thermodynamic processes of non balance with homogenous convection. The results of the model allow satisfactorily reproducing the light curves of DAV classic stars: G29- 38, GD 358, HL Tau- 76 and WD1647+1591.

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