Overtures to the pulsational instability of ZZ Ceti variables

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dc.creatorGautschy, Alfred
dc.creatorLudwig, Hans-Günter
dc.creatorFreytag, Bernd
dc.date1995-07-26
dc.date.accessioned2026-07-07T02:19:57Z
dc.date.available2026-07-07T02:19:57Z
dc.descriptionResults of nonradial, nonadiabatic pulsation calculations on hydrogen-rich white dwarf models are presented. In contrast to earlier attempts, the modeling builds on hydrodynamically simulated convective surface layers supplemented with standard interior models. Based on our stellar models and despite of various simple attempts to couple convection and pulsation we could not reproduce theoretically the presently adopted location of the observed blue edge of the ZZ Ceti variables. When the convective efficiency is high enough we found a sensitive dependence of the stability properties of the g-modes on the pulsational treatment of shear within the convection zone.
dc.description13 pages, postscript figures included in text, uuencoded gzipped ps-file. Submitted for publication in Astron.&Astrophys
dc.identifierhttps://arxiv.org/abs/astro-ph/9508002
dc.identifierhttp://arxiv.org/abs/astro-ph/9508002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10069
dc.subjectAstrophysics
dc.titleOvertures to the pulsational instability of ZZ Ceti variables
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