Stellar rotation on the zero age main sequence

Details Stellar rotation on the zero age main sequence Stellar rotation on the zero age main sequence

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.184..743r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 184, Sept. 1978, p. 743-753.

Astronomy and Astrophysics

Astronomy

9

Galactic Clusters, Main Sequence Stars, Stellar Rotation, Angular Momentum, Astronomical Spectroscopy, Binary Stars, Velocity Distribution

Scientific paper

Analysis of rotational velocities of unevolved members in clusters indicates that for a given mass the dispersion in the true rotational velocities is small for normal, single main-sequence stars. The envelope of highest rotation of rich clusters and associations is utilized to derive the rotational velocities on the zero age main sequence. It is suggested (1) that the zero age main-sequence rotation curve defines the star's stability against fission and (2) that the frequency of spectroscopic binaries in a cluster is determined by the total angular momentum available to the gas cloud before fragmentation.

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