Termination of AGB evolution by hydrogen recombination.

Details Termination of AGB evolution by hydrogen recombination. Termination of AGB evolution by hydrogen recombination.

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993nuas.symp....1w&link_type=abstract

"Nuclear Astrophysics, Proceedings of the 7th Workshop held 22-27 March 1993 at Ringberg Castle, Tegernsee,

Astronomy and Astrophysics

Astrophysics

Stellar Evolution: Agb Stars, Helium Burning: Agb Stars

Scientific paper

A set of numerical methods has been devised to deal with the special needs of a parameter study on hydrostatic Asymptotic Giant Branch (AGB) evolution at a guaranteed high degree of accuracy. The author computed 8 complete sequences with initial masses in the range 0.8 to 4.0 Msun from the ZAMS up to and along the AGB. He finds that for each mass there exists a critical luminosity above which the stars experience a runaway expansion during the luminosity peak following a thermal pulse. The reason for this lies in a long-predicted instability due to the recombination of hydrogen.

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