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Type determination for SN 2005L

ATel #401; The Nearby Supernova Factory: G. Aldering, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, J. Siegrist, R. Scalzo, R. C. Thomas, L. Wang (Lawrence Berkeley National Laboratory, Berkeley, CA), G. Adam, R. Bacon, C. Bonnaud, L. Capoani, D. Dubet, F. Henault, B. Lantz, J-P. Lemonnier, A. Pecontal, E. Pecontal (Centre de Recherche Astronomique de Lyon), N. Blanc, G. Boudoul, S. Bongard, A. Castera, 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, P. Astier, E. Barrelet, G. Garavini, S. Gilles, L-A. Guevara, D. Imbault, C. Juramy, R. Pain, R. Taillet, D. Vincent (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), C. Baltay, D. Rabinowitz, A. Bauer (Yale)
on 27 Jan 2005; 22:54 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: R. C. Thomas (rcthomas@lbl.gov)

Subjects: Optical, Supernovae

A spectrum (range 330-990 nm) of SN 2005L in MCG+07-33-5 (IAUC # 8469 ), obtained Jan 27.64 UT with the SuperNova Integral Field Spectrograph on the University of Hawaii 2.2m telescope, reveals it to be a very peculiar type Ia supernova possibly one to two weeks past maximum. Assuming a host redshift from the Sloan Digital Sky Survey of z = 0.07, we clearly identify the Si II 6150 AA absorption at ejection velocity 10,000 km/s. The blue region (330-510 nm) is littered with numerous absorption features from intermediate mass elements, among which we identify Mg II, Si III and a weak Ca II.

Nearby Supernova Factory