Work

The evolution of rotating stars. I - Method and exploratory calculations for a 7-solar-mass star

Year: 1976

Type: article

Abstract: A method is developed which allows the evolution of rotating stars to be studied well beyond the main-sequence stage. Four different cases of redistribution of angular momentum in an evolving star are considered. Evolutionary sequences for a 7-solar-mass star, rotating according to these different cases, were computed from the zero-age main-sequence to the double-shell-source stage. Each sequence was begun with a (typical) equatorial rotational velocity of 210 km/s. On the main sequence, the effects of rotation are of minor importance. However, as the core contracts during later stages, important effects arise in all physically plausible cases. The outer regions of the cores approach critical velocities and develop unstable angular-velocity distributions. The effects of these instabilities should significantly alter the subsequent evolution.

Source: The Astrophysical Journal

DOI: 10.1086/154817

Authors: A. S. Endal, S. Sofia

Institutions: Goddard Space Flight Center, National Aeronautics and Space Administration

Language: English

Topic: Stellar, planetary, and galactic studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2029484378

FWCI: 1.653

Cites:

Cited by: 255

Related to: 9