Type determination for SN 2004M

Details Type determination for SN 2004M Type determination for SN 2004M

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005atel..396....1a&link_type=abstract

The Astronomer's Telegram, #396

Astronomy and Astrophysics

Astronomy

3

Optical, Nova, Supernova

Scientific paper

We report that a spectrum (range 330-990 nm) of SN 2005M (IAUC #8470), obtained Jan 24.52 UT with the SuperNova Integral Field Spectrograph on the University of Hawaii 2.2m telescope, shows it to be a type Ia SN most similar to SN 1991T about 12 days before maximum. Weak Ca II H&K and Fe III features are evident. The spectrum is very blue, and lacks interstellar Na I D, indicating very little or no extinction.

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