Non-linear Effects in Pulsating White Dwarfs
Asteroseismology is a very powerful technique to study the interior of pulsating stars like the ZZ Ceti white dwarfs (DAV), because the driving mechanism is strongly correlated with the chemical composition of the layers in the star. The necessary first step is the identification of the pulsation mode. In contrast to our sun most DA variables (H
Weidner, C. et al.
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2001