A radio and X-ray study of Type Ic SN2007gr at < 10 Mpc

Details A radio and X-ray study of Type Ic SN2007gr at < 10 Mpc A radio and X-ray study of Type Ic SN2007gr at < 10 Mpc

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2486s&link_type=abstract

Chandra Proposal ID #08508277

Physics

Chandra Proposal Id #08508277

Scientific paper

The new Type Ic SN2007gr at just 10 Mpc was spectroscopically identified on Aug 16 2007 at an estimated age of a few days since explosion. Our radio follow-up on Aug 17 shows a radio transient coincident with the optical position. Simultaneous radio (synchrotron) and X-ray (synchrotron,thermal,and/or IC) observations of SNe Ibc trace the interaction of the fastest ejecta with the circumstellar material and have been limited to just a handful of events to date. The combination of radio and X-ray data breaks model degeneracies and enables the parameters of the fastest ejecta to be revealed. Extrapolating the optically thin radio emission as nu^-0.7 to the X-ray band we expect at a count rate of roughly 0.0005 cps. We therefore request 20 ksec of DDT within 1-2 weeks for our radio/X-ray study of this very nearby SN.

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