Asteroseismology of white dwarfs with fully evolutionary models

CÓRSICO, A. H.; ROMERO, A. D.; ALTHAUS, L. G.; MILLER BERTOLAMI, M. M.

Kraków

Workshop; 18th European White Dwarf Workshop; 2012

Pedagogical University of Cracow

We present a novel approach for asteroseismology of DA and DB whitedwarfs that consists in the employment of large sets of non-static, physically sound,fully evolutionary models representative of these stars. Our approach combines (i) asignificant exploration of the parameter space (M, Te; MH, etc), and (ii) a detailedand updated input physics, in particular regarding the internal chemical structure, thatis a crucial aspect for correctly interpret the information embedded in the pulsationspectra of these stars. We already have applied this approach with success on pulsatingPG1159 stars (DOV or GW Vir variables). Here, we apply our approach to an ensembleof 44 bright DAV stars, and also to the recently discovered DAV star WD J1916+3938(Hermes et al. (2011)) and DBV star KIC 8626021 (Østensen et al. (2011)), both starslocated in the field of view of the Kepler Mission.