Low-mass evolution from He ignition to beyond the horizontal branch

Details Low-mass evolution from He ignition to beyond the horizontal branch Low-mass evolution from He ignition to beyond the horizontal branch

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ssrv...27..483d&link_type=abstract

(International Astronomical Union, Colloquium on Stellar Hydrodynamics, 58th, Los Alamos, N. Mex., Aug. 12-15, 1980.) Space Scie

Astronomy and Astrophysics

Astronomy

6

Stellar Evolution, Stellar Structure, Thermonuclear Reactions, Cepheid Variables, Helium, Hertzsprung-Russell Diagram, Hydrodynamics, Red Giant Stars, Stellar Models

Scientific paper

The evolution of an 0.6 solar mass stellar model during core helium burning is presented. Following the off-center ignition of helium in the 'core' flash, the star remains on the red giant branch for more than one million years, undergoing twelve additional flashes. After leaving the giant branch, the star evolves on the horizontal branch for 8.15 x 10 to the 7th years before returning to the giant branch and undergoing strong helium-shell flashes. The implications for horizontal branch and RR Lyrae stars are discussed.

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