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Type Determination for SN 2005bz

ATel #493; The Nearby Supernova Factory: G. Aldering, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, R. Scalzo, R. C. Thomas, L. Wang (Lawrence Berkeley National Laboratory, Berkeley, CA), C. Bonnaud, E. Pecontal (Centre de Recherche Astronomique de Lyon), N. Blanc, S. Bongard, Y. Copin, E. Gangler, L. Sauge, G. Smadja (Institut de Physique Nucleaire de Lyon), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), P. Antilogus, G. Garavini, S. Gilles, R. Pain (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), C. Baltay, D. Rabinowitz, A. Bauer (Yale)
on 14 May 2005; 22:23 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: R. C. Thomas (rcthomas@lbl.gov)

Subjects: Optical, Supernovae

The Nearby Supernova Factory reports that a spectrum (range 320-1000 nm) of SN 2005bz (IAUC # 8527 ), obtained May 14.6 UT with the Supernova Integral Field Spectrograph on the University of Hawaii 2.2-m telescope, shows it to be a Type IIP SN at least a month after explosion. A well-developed net-emission H-alpha profile is accompanied by P-Cygni profile H-beta and O I 777 nm. Assuming the NED recession velocity of the host UGC 11162 of 4624 km/s, the hydrogen absorption features are at 4000 km/s, while the O I feature is at 10,000 km/s.