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Discovery of Radio Emission from the Type Ibc SN 2007gr

ATEL # 1187; Alicia Soderberg (Princeton)
on 21 Aug 2007; 17:56 UT
Distributed as an Instant Email Notice (Supernova)
Password Certification: Alicia M. Soderberg (

Subjects: Radio, Nova, Supernova

I observed the Type Ibc SN 2007gr (CBET 1034) with the Very Large Array beginning on 2007 Aug 17.41 UT. AT 8.46 GHz I detect a radio transient consistent with the optical position with a flux density of 610 +- 40 microJy. Follow-up observations with the Very Large Array are ongoing. I further note that a Chandra DDT observation of SN 2007gr is planned for 2007 Aug 29 to map out the broadband (radio to X-ray) SN spectrum. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates