2007/04/02 by Yu-Qing Lou, Weigang Wang, Wei-Gang Wang · 2 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Astrophysics and Star Formation Studies #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.1111/j.1745-3933.2007.00319.x
published as Mon.Not.Roy.Astron.Soc.Lett.378:L54-L58,2007 · 5 pages, 1 figure, Accepted for publication in MNRAS
arxiv created 2007/04/02 · openalex publication_date 2007/05/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Abstract We construct magnetohydrodynamic (MHD) similarity rebound shocks joining ‘quasi-static’ asymptotic solutions around the central degenerate core to explore an MHD model for the evolution of random magnetic field in supernova explosions. This provides a theoretical basis for further studying synchrotron diagnostics, MHD shock acceleration of cosmic rays, and the nature of intense magnetic field in compact objects. The magnetic field strength in space approaches a limiting ratio, which is comparable to the ratio of the ejecta mass driven out and the progenitor mass, during this self-similar rebound MHD shock evolution. The intense magnetic field of the remnant compact star as compared with that of the progenitor star is mainly attributed to both the gravitational core collapse and the radial distribution of magnetic field.