Discovery of SNF20061113-003 and Classification of SN 2006li

ATel #946; The Nearby Supernova Factory: E. Pecontal, G. Rigaudier (Centre de Recherche Astronomique de Lyon), P. Antilogus, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), C. Buton, Y. Copin, E. Gangler, G. Smadja (Institut de Physique Nucleaire de Lyon), G. Aldering, C. Aragon, S. Bailey, S. Bongard, M. J. Childress, S. Loken, P. Nugent, S. Perlmutter, K. Runge, R. Scalzo, R. C. Thomas, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), C. Baltay, A. Bauer, D. Herrera, D. Rabinowitz (Yale)
on 17 Nov 2006; 01:13 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: R. C. Thomas (rcthomas@lbl.gov)

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The Nearby Supernova Factory reports the discovery of supernova SNF20061113-003 (coordinates RA 02:04:24.02 DEC 09:40:38.2 J2000.0) in images obtained November 13.2 UTC at an approximate magnitude of 19.7 (calibrated to R) using the QUEST II camera on the Palomar Oschin 48-inch telescope as a part of the JPL Near-Earth Asteroid Tracking component of the Palomar-QUEST Consortium. No object is visible at this location on a previous image taken November 11.2 UTC. A spectrum (range 320-1000 nm) of this object, obtained November 15.5 UTC with the SuperNova Integral Field Spectrograph (SNIFS) on the University of Hawaii 2.2-m telescope, reveals that it is a young Type II supernova, with He I 587.6 nm and H-alpha P Cygni features. The H-alpha detected in the spectrum of the nearby anonymous host galaxy indicates a redshift of z = 0.0248.

The Nearby Supernova Factory also reports that a SNIFS spectrum (range 320-1000 nm) of SN 2006il (IAUC # 8770 ) in UGC 3664 (z = 0.02893, Marzke et al, 1996, AJ, 112, 1803), obtained November 15.6 UTC reveals that it is a Type Ib SN. Prominent P Cygni Ca II infrared triplet, P Cygni O I 777.6 nm and a small He I 587.6 nm absorption are visible.