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PTF discovery of PTF10jkx, a type II supernova

ATEL # 2675; A. Gal-Yam, I. Arcavi (Weizmann Institute of Science), D. A. Howell, (LCOGT/UCSB), P. Nugent (LBNL), M. Sullivan (Oxford), M. M. Kasliwal, R. M. Quimby, E. O. Ofek, S. R. Kulkarni (Caltech), 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 14 Jun 2010; 21:19 UT
Distributed as an Instant Email Notice (Supernova)
Password Certification: Avishay Gal-Yam (

Subjects: Optical, Nova, Supernova

The PTF (ATEL #1964; reports the discovery of a new supernova, PTF10jkx. The supernova was discovered by Oarical, an autonomous software framework of the PTF collaboration, on June 10 UT at RA(J2000) = 13:32:57.11 and DEC(J2000) = +48:18:54.5 at a magnitude of 19.8 in R-band (calibrated with respect to the USNO catalog) in the galaxy SDSS J133257.67+481855.7 (z=0.028). The supernova was not detected down to mag 21.5 in previous PTF images taken during May 2010 (3-sigma). A spectrum was obtained using the GMOS Spectrograph (Hook et al. 2004, PASP, 116, 425) on the Gemini North 8-m telescope on June 10 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 II-P SN 1999em at 9 days post-peak.

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