Global 3-D solar-type star-disc dynamo systems: I. MHD modeling

B von Rekowski, N Piskunov

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We have carried out global three-dimensional magnetohydrodynamic simulations of the star-disc interaction region around a young solar-type star. T'he magnetic field is generated and maintained by dynamos in the star as well as in the disc. The developing mass flows possess non-periodic time-variable azimuthal structure and are controlled by the nonaxisymmetric magnetic fields. Since the stellar field drives a strong stellar wind, accretion is anti-correlated with the stellar field strength and disc matter is spiraling onto the star at low latitudes, both contrary to the generally assumed accretion picture. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original languageEnglish
Pages (from-to)340-354
Number of pages15
JournalAstronomische Nachrichten
Volume327
DOIs
Publication statusPublished - 2006

Keywords

  • ISM : jets and outflows
  • accretion, accretion disks
  • magnetohydrodynamics (MHD)
  • stars : mass-loss
  • stars : pre-main sequence
  • T-TAURI STARS
  • YOUNG STELLAR OBJECTS
  • MAGNETOSPHERIC ACCRETION
  • 3-DIMENSIONAL SIMULATIONS
  • MAGNETIC-FIELDS
  • INCLINED DIPOLE
  • ORION NEBULA
  • SPIN-DOWN
  • ROTATION
  • OUTFLOWS

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