Rotational evolution of solar-type stars. I - Main-sequence evolution

Details Rotational evolution of solar-type stars. I - Main-sequence evolution Rotational evolution of solar-type stars. I - Main-sequence evolution

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...376..204m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, July 20, 1991, p. 204-213.

Astronomy and Astrophysics

Astrophysics

84

Magnetic Stars, Main Sequence Stars, Stellar Evolution, Stellar Interiors, Stellar Rotation, Stellar Winds, Angular Momentum, Angular Velocity, Momentum Transfer, Stellar Magnetic Fields, Stellar Models

Scientific paper

A simple, parameterized model for the redistribution of angular momentum within the interiors of solar-type stars is presented. By incorporating it with a description of angular momentum loss through the action of a magnetically coupled wind, tracing the rotational histories of low-mass dwarf stars for a variety of initial conditions and parameter specifications is accomplished. The results of calculations are discussed for the rotational evolution of a 1 solar mass star, from the time of its arrival on the zero-age main sequence to the age of the present-day sun. Best agreement is with observational constraints for (1) a surface magnetic field strength which is largely independent of surface angular velocity omega for rapid rotation, and approximately linearly dependent on omega for approximately solar values, and (2), a time scale for angular momentum transfer from the core to the convection zone which remains essentially constant throughout the evolution, with magnitude of a about 10 million yr. This value is approximately equal to the initial wind braking time. These results are discussed in the context of a qualitative description of angluar momentum redistribution by magnetic fields in the radiative interiors of solar-type stars.

Affiliated with

Also associated with

No associations

Rating

Rotational evolution of solar-type stars. I - Main-sequence evolution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rotational evolution of solar-type stars. I - Main-sequence evolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotational evolution of solar-type stars. I - Main-sequence evolution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-861612