The relation between the initial and final masses of stars with different chemical compositions

Details The relation between the initial and final masses of stars with different chemical compositions The relation between the initial and final masses of stars with different chemical compositions

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998arep...42..613f&link_type=abstract

Astronomy Reports, Volume 42, Issue 5, September 1998, pp.613-620

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present the results of calculations for the relations between the initial and final masses M_i-M_f of low- and moderate-mass stars for various initial heavy-element abundances Z. For Z = 0.02 and Z = 0.001, the resulting differences in the final masses for white dwarfs reach 0.1M_solar for initial masses from 1.5 to 4M_solar. These differences are primarily due to the dependence of the initial masses of the carbon-oxygen cores of asymptotic giant branch stars on their chemical compositions. We study the roles of various assumptions about mass loss of stars in the final stages of their evolution. The population of white dwarfs is modeled, and their mass distribution is obtained for various assumptions about the initial chemical composition of the stars.

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