The effect of differential rotation on the internal structure of low mass stars

Details The effect of differential rotation on the internal structure of low mass stars The effect of differential rotation on the internal structure of low mass stars

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phdt.........5l&link_type=abstract

Ph.D. Thesis Yale Univ., New Haven, CT.

Computer Science

8

Stellar Interiors, Stellar Luminosity, Stellar Mass, Stellar Rotation, Stellar Structure, Angular Momentum, Main Sequence Stars, Variable Stars

Scientific paper

Axisymmetric, differentially rotating main sequence models for stars for 0.9M and homogeneous composition were constructed. Differential rotation produces significant effects on the interior of the models. The most noteworthy feature is the decrease in luminosity due to rotation. Stellar mass luminosity relation is substantially affected by differential rotation. Differential rotation also causes a large decrease in central pressure, temperature and density. The main sequence lifetimes of the rotating models, estimated from the stellar mass and luminosity, can be increased by more than a factor of 3 over the lifetimes of nonrotating stars of the same mass, and as much as 30 percent over the lifetimes of lower mass, nonrotating stars with comparable luminosities.

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