Evolution of rotating low mass stars with angular momentum loss

Details Evolution of rotating low mass stars with angular momentum loss Evolution of rotating low mass stars with angular momentum loss

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...243..405k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 243, no. 2, March 1991, p. 405-411.

Astronomy and Astrophysics

Astrophysics

2

Angular Momentum, Stellar Evolution, Stellar Magnetic Fields, Stellar Rotation, Hertzsprung-Russell Diagram, Main Sequence Stars, Stellar Mass Ejection, Stellar Winds

Scientific paper

The evolutionary behavior of rotating low mass stars has been investigated with angular momentum loss by the magnetic stellar wind through the pre-main sequence and on the zero age main sequence phases. As the stars contract toward the zero age main sequence, angular momentum is removed from the convective envelope under the assumption that initially only the convective envelope is spun down in low mass stars. It is obtained that most of the angular momentum loss occurs prior to reaching the zero age main sequence. By the time of 7 x 10 to the 8th yr, rotating low mass stars spin down to below 10 km/s surface rotational velocities. Hyades cluster data show almost the same trend with the isochrone of 7 x 10 to the 8th yr, obtained in the present study.

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