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PTF Discovery of PTF10llv

ATel #2765; I. Arcavi, A. Gal-Yam, S. Ben-Ami, A. Sternberg (Weizmann Institute of Science), M. Sullivan (Oxford), R. M. Quimby, M. M. Kasliwal, E. O. Ofek, S. R. Kulkarni (Caltech), P. Nugent (LBNL), J. Bloom (UCB), N. M. Law (U. Toronto), R. G. Dekany, G. Rahmer, David Hale, R. Smith, J. Zolkower, V. Velur, R. Walters, J. Henning, K. Bui, D. McKenna (Caltech), and J. Jacobsen (LBNL) on behalf of the Core-Collapse working group of the Palomar Transient Factory (ATEL#1964)
on 31 Jul 2010; 08:09 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Avishay Gal-Yam (avishay.gal-yam@weizmann.ac.il)

Subjects: Optical, Supernovae

The PTF (ATEL #1964; http://www.astro.caltech.edu/ptf/ ) reports the discovery of a new supernova, PTF10llv. The supernova was discovered on June 17 UT at RA(J2000) = 22:17:44.67 and DEC(J2000) = +13:19:30.1 at a magnitude of ~19.2 in R-band (calibrated with respect to the USNO catalog) in the galaxy LCSB S2647P (z=0.067276). The supernova was not detected down to mag 21.1 in previous PTF images taken during 2009 (3-sigma). A spectrum was obtained using the Double-Beam Spectrograph (DBSP; Oke \& Gunn 1982, PASP, 94, 586) on the Palomar 5-m Hale telescope on July 14 UT, revealing the supernova to be of type II. The superfit program (Howell et al. 2005, ApJ 634, 1190) finds a good match to the type IIP SN 1993W at 21 days post-peak.