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White Dwarf Seismology and the ^{12}C(alpha,gamma)^{16}O Rate

Travis S. Metcalfe
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Abstract

Recent determinations of the internal composition and structure of two helium-atmosphere variable white dwarf stars, GD 358 and CBS 114, have led to conflicting implied rates for the ^{12}C(alpha,gamma)^{16}O reaction. If we assume that both stars were formed through single-star evolution, then the initial analyses of their pulsation frequencies must have differed in some systematic way. I present improved fits to the two sets of pulsation data, helping to resolve the tension between the initial results.

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Travis S. Metcalfe. 2002-08-01. White Dwarf Seismology and the ^{12}C(alpha,gamma)^{16}O Rate. https://arxiv.org/abs/astro-ph/0208024

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