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

TL;DR

This paper provides a comprehensive database of evolutionary models, chemical profiles, and pulsation periods for ZZ Ceti stars, facilitating improved asteroseismological analysis of these white dwarfs.

Contribution

It introduces a large, fully evolutionary set of models with detailed chemical profiles and pulsation periods for ZZ Ceti stars, based on complete stellar evolution history.

Findings

Chemical profiles and pulsation periods cover observed ZZ Ceti range.

Models include a wide range of stellar masses and temperatures.

Data is publicly available for asteroseismology research.

Abstract

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}