SN 2003gd: A Normal Type II-P Supernova?

Details SN 2003gd: A Normal Type II-P Supernova? SN 2003gd: A Normal Type II-P Supernova?

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..342..341h&link_type=abstract

1604-2004: Supernovae as Cosmological Lighthouses, ASP Conference Series, Vol. 342, Proceedings of the conference held 15-19 Jun

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We present photometric and spectroscopic data of SN 2003gd, the first type II supernova (SN) to have a directly confirmed red supergiant progenitor. We compare SN 2003gd with SN 1999em, a similar type II-P SN, estimating an explosion date of 18th March 2003. SN 2003gd was found to have a lower tail luminosity compared with other ``normal'' type II-P SNe bringing into question its nature. So, is this a ``normal'' type II-P SN or something a bit more peculiar? We discuss this and the implications for the progenitor.

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