Type determination for SN 2005al

Details Type determination for SN 2005al Type determination for SN 2005al

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005atel..430....1a&link_type=abstract

The Astronomer's Telegram, #430

Astronomy and Astrophysics

Astronomy

Optical, Nova, Supernova

Scientific paper

The Nearby Supernova Factory reports that a spectrum (range 340-1000 nm) of SN 2005al (IAUC #8488), obtained Feb 28.54 UT with the SuperNova Integral Field Spectrograph on the University of Hawaii 2.2m telescope, shows it to be a type Ia SN, most likely near maximum light. Assuming a host redshift of z =0.0124 from NED, the Si II 635.5 nm minimum is at approximately 11,000 km/s, and the Ca II infrared triplet absorption extends to a high velocity of 22,500 km/s.

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