## Abstract

Using a nonlinear dynamo model (in a single-mode approximation), an analytical expression is derived which gives the magnitude of the mean magnetic field as a function of rotation and other parameters for a solar-type convective zone. By means of this expression

we find a power-law relation between the X-ray luminosity and stellar rotation. The exponent in this relation is in agreement with observations.

we find a power-law relation between the X-ray luminosity and stellar rotation. The exponent in this relation is in agreement with observations.

Original language | English GB |
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Pages (from-to) | 159-167 |

Journal | Astronomy and Astrophysics |

Volume | 297 |

Issue number | 1 |

State | Published - May 1995 |

## Keywords

- SUN, MAGNETIC FIELDS
- STARS, MAGNETIC FIELDS
- SUN, X-RAYS
- TURBULENCE
- MHD