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PTF weekly SN discovery report, April 15, 2011

ATel #3288; A. Gal-Yam, P. Nugent, J. Silverman, C. Badenes, T. Matheson, E. Walker, I. Arcavi, D. Xu, A. Sternberg and J. Bloom report on behalf of the Palomar Transient Factory collaboration
on 17 Apr 2011; 07:53 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 10 new supernovae.
PTF name RA Dec mag Discovery Previous limit (date) Type Redshift Phase (at date)
PTF11cdo 16:25:35.42 +33:32:01.6 R=19.5 12/4/2011 R>21 (3/2011) SN Ia 0.146 -7 days (April 14)
PTF11bqc 09:37:09.82 +23:00:33.8 g=20.5 30/3/2011 R>20.5 (23/3/2011) SN Ia 0.081 -5 days (April 10)
PTF11bpx 12:35:09.22 -00:13:17.2 g=19.5 4/4/2011 g>21.4 (2/4/2011) SN II 0.024
PTF11bov 12:56:53.94 +22:22:28.1 g=19.6 29/3/2011 R>20.8 (23/3/2011) SN Ic 0.022
PTF11bnf 16:04:44.82 +49:27:28.2 R=15.8 15/3/2011 R>21 (10/2010) SN Ia 0.024 +33 days (April 10)
PTF11bkf 14:21:31.35 +23:56:53.3 R=17.9 14/3/2011 g>21 (1/3/2011) SN Ia 0.05 +7 days (March 25)
PTF11bju 11:56:14.36 +25:21:14.5 R=19.4 14/3/2011 g>21 (11/3/2011) SN Ia 0.0323 -9 days (March 23)
PTF11biv 17:08:33.90 +22:04:15.9 R=18.6 14/3/2011 R>20.3 (10/2010) SN Ia 0.048 +18 days (April 10)
PTF11bgl 16:12:18.18 +25:59:25.3 R=18.4 13/3/2011 R>20.2 (2/2011) SN II 0.041
PTF11bnx 16:30:19.32 +21:05:07.3 R=19.2 23/3/2011 R>21 (10/2010) SN Ia 0.06 -8 days (March 25)
Discoveries were made by autonomous PTF software as well as by the Galaxy Zoo Supernova Project (Smith et al. 2011, MNRAS, 412, 1309; http://supernova.galaxyzoo.org ). R-band magnitudes are calibrated with respect to the USNOB1 catalog. Spectra were obtained using the RC spectrograph mounted on the Mayall 4m telescope at KPNO; the DOLORES spectrograph mounted on the 3.5m TNG at La Palma, Spain; and the SNIFS spectrograph on the 2.2-m UH telescope. PTF11bov was independently discovered by the La Sagra Sky Survey Supernova Search and announced as SN 2011bm (CBET #2695). PTF11bju was independently discovered by the CRTS and announced as SN 2011bg (CBET #2689). SNIFS (The SuperNova Integral Field Spectrograph) on the University of Hawaii 2.2-m telescope is part of the Nearby Supernova Factory II project, a scientific collaboration between the Centre de Recherche Astronomique de Lyon, Institut de Physique Nucl'eaire de Lyon, Laboratoire de Physique Nucl'eaire et des Hautes Energies, Lawrence Berkeley National Laboratory, Yale University, University of Bonn, Max Planck Institute for Astrophysics, Tsinghua Center for Astrophysics, and the Centre de Physique des Particules de Marseille.