Magnetic Fields in Stars: Origin and Impact

Abstract

Various types of magnetic fields occur in stars: small scale fields, large scale fields, and internal toroidal fields. While the latter may be ubiquitous in stars due to differential rotation, small scale fields (spots) may be associated with envelop convection in all low and high mass stars. The stable large scale fields found in only about 10 per cent of intermediate mass and massive stars may be understood as a consequence of dynamical binary interaction, e.g., the merging of two stars in a binary. We relate these ideas to magnetic fields in white dwarfs and neutron stars, and to their role in core-collapse and thermonuclear supernova explosions.

9 pages, 3 figures; to be published in the Proceedings of IAU-Symposium 302: Magnetic fields throughout stellar evolution

References in corpus (15)

• Binary interaction dominates the evolution of massive stars
• Pre-Supernova Evolution of Massive Single and Binary Stars
• The rotation rates of massive stars: the role of binary interaction through tides, mass transfer and mergers
• The surprising magnetic topology of tauSco: fossil remnant or dynamo output?
• The impact of magnetic fields on single and binary star formation
• Binary Star Origin of High Field Magnetic White Dwarfs
• The VLT-FLAMES survey of massive stars: rotation and nitrogen enrichment as the key to understanding massive star evolution
• Magnetic fields and accretion flows on the classical T Tauri star V2129 Oph
• Simulations of core convection in rotating A-type stars: Magnetic dynamo action
• A search for strong, ordered magnetic fields in Herbig Ae/Be stars
• Structure and evolution of high-mass stellar mergers
• Clumping in the inner winds of hot, massive stars from hydrodynamical line-driven instability simulations
• Solar-like oscillations in a massive star
• Discovery of a magnetic field in the rapidly-rotating O-type secondary of the colliding-wind binary HD 47129 (Plaskett's star)
• Supernova remnants with magnetars: clues to magnetar formation

Cited by in corpus (3)

• Nonthermal particles and photons in starburst regions and superbubbles
• The impact of non-dipolar magnetic fields in core-collapse supernovae
• Blue supergiants as descendants of magnetic main sequence stars