The evolution of rotational velocity in O type stars

Details The evolution of rotational velocity in O type stars The evolution of rotational velocity in O type stars

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....82...73p&link_type=abstract

Astronomy and Astrophysics, vol. 82, no. 1-2, Feb. 1980, p. 73-78. Fonds de la Recherche Fondamentale Collective National Res

Astronomy and Astrophysics

Astrophysics

5

O Stars, Stellar Evolution, Stellar Rotation, Stellar Winds, Angular Momentum, Angular Velocity, Stellar Structure, Velocity Distribution

Scientific paper

The influence of stellar wind mass loss on the evolution of the rotational velocity of O type main sequence stars is investigated. Calculations are performed for masses ranging from 15 to 100 solar masses. Two limiting rotation models with conservation of angular momentum are adopted: rigid rotation and differential rotation with no viscous coupling between successive spherical shells. It is found that stellar wind mass loss leads to a decrease of rotational velocity, with high mass loss rates resulting in very small final values of rotational velocity. The results are compared with observations of O type stars.

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