An Early Observation of a Nearby Supernova

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Chandra Proposal Id #03508074

Scientific paper

The X-ray emission of supernovae is a young field with relatively little data. The possible connection of supernovae with GRBs has been tantalizing since the occurrence of SN1998bw. The debate over that source continues. Observations of SN2002ap may go a long way to settling some of the debate. In addition, the X-ray emission of Type Ic supernova other than SN1998bw is based on the single detection of SN1994I in M51. X-rays provide information about the circumstellar ejecta as the out- going shock runs into matter from previous phases of mass loss. A reverse shock is created which generates low-energy X-rays (~1 keV) while the outgoing shock generates harder events. The X-rays probe the circumstellar matter and will provide measures of abundances. The X-ray light curve provides a measure of the matter distribution. (Ref for SN: Schlegel 1995, Reports Prog in Physics, 58, 1375)

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