2006/12/26 by Roger A. Chevalier, R. A. Chevalier, S. Immler +1 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Gamma-ray bursts and supernovae #Pulsars and Gravitational Waves Research #astro-ph
paper · pdf · doi:10.1063/1.2803564
published as AIPConf.Proc.937:206-211,2007 · 8 pages, to appear in Circumstellar Media and Late Stages of Massive Stellar Evolution, RevMexAA
arxiv created 2006/12/26 · openalex publication_date 2007/01/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
Favor de proporcionar un resumen en español.If you cannot provide a spanish abstract, the editors will do this.Radio observations of Type Ib/c supernovae suggest that circumstellar interaction takes place with a wide range of wind densities, comparable to that seen in Galactic Wolf-Rayet stars.Efficient production of magnetic field in the shocked region is needed.The X-ray emission observed from some Type Ib/c supernovae is higher than would be expected by the thermal or inverse Compton mechanisms; a synchrotron interpretation requires a flattening of the electron energy spectrum at high energies, as might occur in a cosmic ray dominated shock wave.The wind density variations that are indicated in two supernovae may be due to a binary companion, although variable mass loss from a single star remains a possibility.Other than the optical supernova radiation, the emission from the nearby SN 2006aj/GRB 060218 appears to be powered by a central engine, while that from SN 1998bw/GRB 980425 could be powered by either a central engine or the outer supernova ejecta.