Work

Diffusive Shock Acceleration with Magnetic Amplification by Nonresonant Streaming Instability in Supernova Remnants

Year: 2008

Type: article

Abstract: We investigate the diffusive shock acceleration in the presence of the nonresonant streaming instability introduced by Bell. The numerical MHD simulations of the magnetic field amplification combined with the analytical treatment of cosmic-ray acceleration permit us to calculate the maximum energy of particles accelerated by high-velocity supernova shocks. The estimates for the Cas A, Kepler, SN 1006, and Tycho historical supernova remnants are given. We also found that the amplified magnetic field is preferentially oriented perpendicular to the shock front downstream of the fast shock. This explains the origin of the radial magnetic fields observed in young supernova remnants.

Source: The Astrophysical Journal

DOI: 10.1086/529580

Authors: V. N. Zirakashvili, V. S. Ptuskin

Institutions: Institute of Terrestrial Magnetism Ionosphere and Radio Wave Propagation, Max Planck Institute for Nuclear Physics

Language: English

Topic: Astrophysics and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: Russian Foundation for Basic Research

OpenAlex ID: W1978962420

FWCI: 7.498

Cites: 37

Cited by: 159

Related to: 10