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How long does it take for heat to flow through the sun?

G. Fiorentini, B. Ricci

astro-pharXiv:astro-ph/9702133

Abstract

This question, which often comes in when discussing solar neutrinos, is not clearly analysed in any textbook, to our knowledge. In this note we give a simple estimate of the flow time, also reminding its (ir)relevance to the solar neutrino problem.

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