MEASURING THE EVOLUTIONARY RATE OF COOLING OF ZZ Ceti
نویسندگان
چکیده
منابع مشابه
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We report on numerical calculations of nonadiabatic eigenvalues and eigenfunctions for g-modes in ZZ Ceti variables. The spectrum of overstable l = 1 modes delineates the instability strip. Its blue edge occurs where ωτc ≈ 1 for the n = 1 mode. Here ω is radian frequency and τc is about four times the thermal timescale at the bottom of the surface convection zone. As a ZZ Ceti cools, its convec...
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In view of recent claims that asteroseismology could supply invaluable insights into the crystallization process occurring in the interiors of massive white dwarf stars, we present in this work new pulsational calculations for improved carbon-oxygen DA white dwarf models suitable for the study of massive ZZ Ceti stars. The background models employed in this study, presented in detail in a recen...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2013
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/771/1/17