Classification of SNe 2005gl and 2005gm
ATel #630; The Nearby Supernova Factory: N. Blanc, S. Bongard, Y. Copin, E. Gangler, L. Sauge, G. Smadja (Institut de Physique Nucleaire de Lyon), P. Antilogus, G. Garavini, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), G. Aldering, S. Bailey, D. Kocevski, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, R. Scalzo, R. C. Thomas, L. Wang, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), C. Bonnaud, E. Pecontal (Centre de Recherche Astronomique de Lyon), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), C. Baltay, D. Rabinowitz, A. Bauer (Yale)
on 14 Oct 2005; 23:09 UT
Distributed as an Instant Email Notice Supernovae
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Subjects: Optical, Supernovae
The Nearby Supernova Factory reports that a spectrum (range 320-1000 nm) of supernova SN2005gl (IAUC # 8615 ), obtained Oct 13.5 UT with the Supernova Integral Field Spectrograph (SNIFS) on the University of Hawaii 2.2-meter telescope, shows it to be a Type IIn supernova at a redshift of z = 0.016, consistent with that of the host NGC 266 (Huchra et al. 1999 ApJS, 121, 287 via NED).
The Nearby Supernova Factory also reports that a spectrum (range 320-1000 nm) of supernova SN2005gm (IAUC # 8616 ), obtained Oct 13.5 UT with SNIFS reveals that it is a Type II supernova at an approximate redshift of z = 0.02, consistent with that of the host NGC 1423 (Theureau et al. 2005 A&A, 430, 373 via NED). The spectrum is well-developed, exhibiting H-alpha, He I 5876 features, and Ca II IR triplet in emission.