DEPENDENCE of STELLAR MAGNETIC ACTIVITY CYCLES on ROTATIONAL PERIOD in A NONLINEAR SOLAR-TYPE DYNAMO

V. V. Pipin, A. G. Kosovichev

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We study the turbulent generation of large-scale magnetic fields using nonlinear dynamo models for solar-type stars in the range of rotational periods from 14 to 30 days. Our models take into account nonlinear effects of dynamical quenching of magnetic helicity, and escape of magnetic field from the dynamo region due to magnetic buoyancy. The results show that the observed correlation between the period of rotation and the duration of activity cycles can be explained in the framework of a distributed dynamo model with a dynamical magnetic feedback acting on the turbulent generation from either magnetic buoyancy or magnetic helicity. We discuss implications of our findings for the understanding of dynamo processes operating in solar-like stars.

Original languageEnglish (US)
Article number133
JournalAstrophysical Journal
Volume823
Issue number2
DOIs
StatePublished - Jun 1 2016

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • dynamo
  • stars: activity
  • stars: solar-type

Fingerprint Dive into the research topics of 'DEPENDENCE of STELLAR MAGNETIC ACTIVITY CYCLES on ROTATIONAL PERIOD in A NONLINEAR SOLAR-TYPE DYNAMO'. Together they form a unique fingerprint.

Cite this