Solar irradiance variations and nonlinear mean field dynamo

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19 Scopus citations


By using a nonlinear model of an axisymmetric α - Ω dynamo, an analytical expression which gives the magnitude of the mean magnetic field as a function of rotation and other parameters for a solar-type convective zone is obtained. The mean magnetic field varies as the {Mathematical expression} power of the rotation rate. The resulting theoretical relationship of the X-ray luminosity as a function of the angular velocity is in agreement with observations by Fleming, Gioia, and Maccacaro (1989).

Original languageEnglish
Pages (from-to)223-234
Number of pages12
JournalSolar Physics
Issue number2
StatePublished - 1 Dec 1994

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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