Circumstellar Interaction Around Type Ib/c Supernovae and the GRB Connection

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dc.creatorChevalier, R. A.
dc.date2006-12-26
dc.date.accessioned2026-07-07T11:00:34Z
dc.date.available2026-07-07T11:00:34Z
dc.descriptionRadio 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.
dc.description8 pages, to appear in Circumstellar Media and Late Stages of Massive Stellar Evolution, RevMexAA
dc.identifierhttps://arxiv.org/abs/astro-ph/0612734
dc.identifierhttp://arxiv.org/abs/astro-ph/0612734
dc.identifierAIPConf.Proc.937:206-211,2007
dc.identifierdoi:10.1063/1.2803564
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187704
dc.subjectAstrophysics
dc.titleCircumstellar Interaction Around Type Ib/c Supernovae and the GRB Connection
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