Seismological studies of ZZ Ceti stars. I. The model grid and the application to individual stars

Abstract

We calculate and explore an extensive adiabatic model grid for pulsating white dwarfs with H dominated atmospheres, the ZZ Ceti stars. We also compared the computed modes with the observed ones for five ZZ Ceti stars that are a representative sample of the whole class of pulsators. We describe our new approach for seismological studies, using the relative observed amplitudes to give weights for the periods in the fit and the external mass and temperature determinations as a guide. Our seismological study is clear evidence that seismology is indeed a powerful tool in the study of stellar structure and evolution.

arXiv comment29 pages, 11 figures

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Cited by in corpus (43)

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• New chemical profiles for the asteroseismology of ZZ Ceti stars
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• Discovery of 74 new bright ZZ Ceti stars in the first three years of TESS
• The potential of asteroseismology for probing the core chemical stratification in white dwarf stars
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• Precision asteroseismology of the pulsating white dwarf GD 1212 using a two-wheel-controlled Kepler spacecraft
• Asteroseismology of the Kepler field DBV White Dwarf - It's a hot one!
• Probing the structure of Kepler ZZ Ceti stars with full evolutionary models-based asteroseismology
• Toward High Precision Seismic Studies of White Dwarf Stars: Parametrization of the Core and Tests of Accuracy
• Asteroseismological analysis of the ultra-massive ZZ Ceti stars BPM~37093, GD~518, and SDSS~J0840+5222
• Revealing the pulsational properties of the V777 Her star KUV 05134+2605 by its long-term monitoring
• A Search for Pulsations in Helium White Dwarfs
• Asteroseismology of the ZZ Ceti star KUV 11370+4222
• Asteroseismology of ZZ Ceti stars with full evolutionary white dwarf models. II. The impact of AGB thermal pulses on the asteroseismic inferences of ZZ Ceti stars
• Pulsating low-mass white dwarfs in the frame of new evolutionary sequences: V. Asteroseismology of ELMV white dwarf stars
• Characterizing the pulsations of the ZZ Ceti star KUV 02464+3239
• Pulsations powered by hydrogen shell burning in white dwarfs
• Ground based observation of ZZ Ceti stars and the discovery of four new variables
• Evidence of Spectral Evolution on the white dwarf sample from the Gaia Mission
• Deciphering the Pulsations of G 29-38 with Optical Time Series Spectroscopy
• The pulsating DA white dwarf star EC 14012-1446: results from four epochs of time-resolved photometry
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• Pulsations of the Low Mass ZZ Ceti Star HS 1824+6000
• Exploring the pulsational properties of two ZZ Ceti stars
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• Asteroseismology of DAV white dwarf stars and G29-38
• Asteroseismology of the pulsating extremely low-mass white dwarf SDSS J111215.82+111745.0: a model with $p$-mode pulsations consistent with the observations
• A comparison of best fits obtained in white dwarf asteroseismology using the WDEC and the LPCODE
• Constraints from parallaxes and average period spacings in the asteroseismic study of 8 DAVs
• Seismic test of the mass-radius relationship of hydrogen-atmospheric white dwarf stars
• The rate of period change in DAV stars
• Asteroseismology of the DAV star R808