Magnetic cycles of lower main sequence stars

Details Magnetic cycles of lower main sequence stars Magnetic cycles of lower main sequence stars

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91..328b&link_type=abstract

Astronomy and Astrophysics, vol. 91, no. 3, Nov. 1980, p. 328-330. Research supported by the Consiglio Nazionale delle Ricerche

Astronomy and Astrophysics

Astrophysics

26

Dynamo Theory, Main Sequence Stars, Stellar Magnetic Fields, Stellar Oscillations, Convection, Periodic Variations, Stellar Models

Scientific paper

The analysis of solar dynamo models, based on differential rotation and an alpha-effect (a mean current parallel to the mean magnetic field), is extended to main sequence stars. The oscillatory fields for five stellar models representing F5, G5, K0, K5, and M0 stars are computed. The oscillation periods are inversely proportional to the turbulent Prandtl number; for Pr equals 0.01 the periods range from 1 yr for F5 stars to 40 yr for M0 stars.

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