Spectroscopic identification of SNe 2004ds and SN 2004dt

Details Spectroscopic identification of SNe 2004ds and SN 2004dt Spectroscopic identification of SNe 2004ds and SN 2004dt

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004atel..321....1g&link_type=abstract

The Astronomer's Telegram, #321

Astronomy and Astrophysics

Astronomy

1

Optical, Nova, Supernova

Scientific paper

A. Gal-Yam, D. Fox and S. Kulkarni, California Institute of Technology, report on red spectra (range 550-780 nm) obtained by Kulkarni and Fox on Aug. 13.5 UT at the 10-m Keck I telescope (+ LRIS). The spectrum of of SN 2004ds (IAUC #8386), shows a broad, well-developed P-Cyg H_alpha line and suggests that this is a type II supernova. The spectrum of SN 2004dt (IAUC #8386), shows the distinctive Si II 6100 absorption trough around 6100 Angstrom, indicating this is a young SN Ia.

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