Radio Supernovae: Circum-Stellar Investigation (C.S.I.) of Supernova Progenitor Stars

Details Radio Supernovae: Circum-Stellar Investigation (C.S.I.) of Supernova Progenitor Stars Radio Supernovae: Circum-Stellar Investigation (C.S.I.) of Supernova Progenitor Stars

2009-02-24

arxiv.org/abs/0902.4059v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

8 pages, 4 figures. White Paper submitted to the Astro2010 SSE panel

Scientific paper

Prior to explosion, a supernova progenitor slowly loses significant amounts of its hydrogen envelope in a stellar wind. After the explosion, the blastwave interacts with this wind producing synchrotron emission. A year of radio observations allows us to probe the progenitor evolution for a thousand years. The EVLA and SKA would represent more than an order of magnitude improvement in our ability to explore the pre-explosion lives of a significantly large population of supernova progenitor stars. It will allow us to move beyond the crude optical classifications and develop a deeper physical understanding of how massive stars live and die.

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