SNe Discovery and Classification - PTF KPNO run
ATel #3195; Sagi Ben Ami
on 27 Feb 2011; 14:20 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Avishay Gal-Yam (avishay.gal-yam@weizmann.ac.il)
Subjects: Optical, Supernovae, Transient
Author list:
S. Ben-Ami (weizmann), A. Horesh (Caltech), T. Matheson (Noao), D. Xu (Weizmann), A. Gal-Yam (Weizmann), I. Arcavi (Weizmann), S.R. Kulkarni (Caltech), M. M. Kasliwal (Caltech), R. Quimby (Caltech), O. Yaron (Weizmann), A. Stenberg (Weizmann), Y.Green (Weizmann), C. Badeness (Weizmann), P. E. Nugent (LBNL), D. A. Howell (LCOGT/UCSB), M. Sullivan (Oxford), J. Cooke (UCI), S. B. Cenko (UCB), N. Law (Caltech), D. Levitan (Caltech), E. O. Ofek (Caltech), D. Poznanski (UCB/LBNL)
We report the discovery and spectroscopic classification of 11 new supernovae from the Palomar Transient Factory (ATel #1964 ; http://www.astro.caltech.edu/ptf ). The supernovae were discovered and classified by Oarical, an autonomous software framework of the PTF collaboration, as well as by Galaxy Zoo Supernovae (http://supernova.galaxyzoo.org), based on observations made with the Palomar 48-inch Oschin Schmidt telescope. Spectroscopy was undertaken with the R-C spectrograph mounted at the Cassegrain focus of the Mayall 4-m telescope at Kitt Peak Observatory on UT 2011 January 31 - February 3 by Ben-Ami, Matheson and Horesh. The superfit (Howell et al. 2005, ApJ 634, 1190) program was used to determine the classifications.
Details of the discoveries are as follows:
| Name |
RA |
Dec |
Disc Date (UT) |
Disc Mag(r) |
Type |
Z |
Phase(d) at discovery |
| PTF11aib | 11:45:24.38 | +68:57:12.5 | January 24 07:21:32.0 | 19.6 | SN II | 0.082 | |
| PTF11acz | 09:32:56.64 | +08:45:07.5 | January 28 05:35:22.6 | 19.6 | SN II | 0.087 | |
| PTF11aif | 02:02:14.97 | +32:49:36.3 | January 28 03:01:48.9 | 20.2 | SN Ia | 0.138 | -12 |
| PTF11aki | 07:52:18.64 | +26:27:39.6 | January 29 05:15:57.0 | 20.0 | SN Ia | 0.13 | -10 |
| PTF11abm | 09:51:17.66 | +68:33:49.2 | January 26 06:02:32.1 | 20.1 | SN Ia | 0.12 | -14 |
| PTF11alg | 02:49:27.16 | +40:17:19.5 | January 29 05:22:18.0 | 20.3 | SN Ia | 0.15 | -13 |
| PTF11aff | 07:54:41.35 | +27:20:57.3 | January 28 03:40:05.4 | 20.3 | SN Ia | 0.19 | -4 |
| PTF11aig | 08:07:31.30 | +16:27:09.2 | January 29 05:12:15.8 | 20.5 | SN Ia | 0.2 | -9 |
| PTF11aad | 09:12:09.84 | +61:42:08.6 | January 24 12:48:42.0 | 19.9 | SN Ia | 0.11 | -8 |
| PTF11aii | 11:05:19.04 | +46:13:47.3 | January 29 10:29:34.1 | 19.9 | SN Ia | 0.12 | -2 |
| PTF11aik | 08:09:02.88 | +57:19:16.1 | January 29 07:38:48.8 | 20.6 | SN Ia | 0.162 | -8 |
