Monday, April 30, 2012

1204.6101 (Alejandra D. Romero et al.)

A public database for white dwarf asteroseismology with fully evolutionary models: I. Chemical profiles and pulsation periods of ZZ Ceti (DAV) stars    [PDF]

Alejandra D. Romero, Alejandro H. Córsico, Leandro G. Althaus, Marcelo M. Miller Bertolami
We present a large bank of chemical profiles and pulsation periods suited for asteroseismological studies of ZZ Ceti (or DAV) variable stars. Our background equilibrium DA white dwarf models are the result of fully evolutionary computations that take into account the complete history of the progenitor stars from the ZAMS. The models are characterized by self-consistent chemical structures from the centre to the surface, and cover a wide range of stellar masses, effective temperatures, and H envelope thicknesses. We present dipole and quadrupole pulsation $g$-mode periods comfortably covering the interval of periods observed in ZZ Ceti stars. Complete tabulations of chemical profiles and pulsation periods to be used in asteroseismological period fits, as well as other quantities of interest, can be freely downloaded from our website (\url{http://www.fcaglp.unlp.edu.ar/evolgroup}
View original: http://arxiv.org/abs/1204.6101

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