Condition for Convective Cores in Main Sequence Stars

Details Condition for Convective Cores in Main Sequence Stars Condition for Convective Cores in Main Sequence Stars

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mst..........1m&link_type=abstract

M.Sc. Thesis in Astrophysics, Queen Mary and Westfield College, University of London, 41 pages.

Astronomy and Astrophysics

Astrophysics

Stars, Convective Cores, Convection, Stellar Models

Scientific paper

The aim of this work is to find the condition for the existence of convective cores in homogenous main sequence stars where the opacity per unit mass is $k=k_0ρα T-β and the energy generation rate per unit mass is ɛ=ɛ0ρ Tη (ρ and T being the density and the temperature, respectively).
Numerical models of stars with different values of α, β and η are constructed and the condition for the existence of a convective core in terms of the relation between α, β and η determined.
Forty points η=η(α,β) are determined for αin[0,2] and βin[0,4] and the condition is found to be
η = - 3.3294; α + 2.0243; β + 1.8393

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