Detection of a red supergiant progenitor star of a type II-plateau supernova

Details Detection of a red supergiant progenitor star of a type II-plateau supernova Detection of a red supergiant progenitor star of a type II-plateau supernova

2004-01-13

arxiv.org/abs/astro-ph/0401235v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in Science, supporting online material available at http://www.ast.cam.ac.uk/~sjs/sn2003gd/

Scientific paper

10.1126/science.1092967

We present the discovery of a red supergiant star that exploded as supernova 2003gd in the nearby spiral galaxy M74. The Hubble Space Telescope (HST) and the Gemini Telescope imaged this galaxy 6 to 9 months before the supernova explosion and subsequent HST images confirm the positional coincidence of the supernova with a single,resolved star which is an 8 +4/-2 solar mass red supergiant. This confirms both stellar evolution models and supernova theories which predict that type II-Plateau supernovae have cool red supergiants as their immediate progenitor stars.

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