PESSTO spectroscopic classification of optical transients

ATel #6933; E. Karamehmetoglu, C. Fremling, A. Nyholm, K. Migotto, F. Taddia, J. Sollerman (OKC), A. De Cia (Weizmann), M. Fraser (IoA), C. Inserra (QUB), K. Maguire (ESO), S. J. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, S. Rostami (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley), L. Wyrzykowski (Warsaw Observatory, Poland)
on 16 Jan 2015; 16:07 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Francesco Taddia (ftadd@astro.su.se)

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PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al., arXiv:1411.0299 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by LSQ (Baltay et al. 2013, PASP, 125, 683), OGLE-IV Real-time Transient Search (Wyrzykowski et al., 2014 arxiv:1409.1095; http://ogle.astrouw.edu.pl/ ), and MASTER Robotic Net (Gorbovskoy et al., 2013, ARep, 57, 233; http://observ.pereplet.ru ). All observations were performed on the ESO New Technology Telescope at La Silla on 2015-01-15, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383). Classification spectra can be obtained from http://www.pessto.org (via WISeREP).

 
Name                      | RA (J2000)   | Dec (J2000) | Disc. Date | Disc. Source | Disc Mag  | z       | Type    | Phase         | Notes  
 
OGLE-2015-SN-001          | 04:29:18.07  | -61:12:08.4 | 20150101   | OGLE         | 19.3      | 0.057   | Ia      | +8 to +10 d   |  
OGLE-2015-SN-005          | 02:01:31.15  | -66:27:16.4 | 20150102   | OGLE         | 19.3      | 0.061   | II      | > +20 d       | (1) 
OGLE-2015-SN-010          | 02:57:08.40  | -73:06:33.8 | 20150110   | OGLE         | 19.1      | 0       | Star    | -             |   
OGLE-2015-SN-012          | 06:07:05.21  | -71:21:58.8 | 20150111   | OGLE         | 20.5      | 0.19    | Ia      | +4 to +7      |   
OGLE-2015-SN-014          | 02:38:28.09  | -67:00:23.6 | 20150113   | OGLE         | 20.4      | 0.064   | II      | +11 to +20 d  | (1)  
OGLE-2015-SN-017          | 06:29:16.32  | -68:25:07.2 | 20150114   | OGLE         | 19.5      | 0.09    | Ia      | -7 to -4 d    | 
OGLE-2015-SN-020          | 03:54:55.48  | -65:12:17.3 | 20150115   | OGLE         | 19.5      | 0.077   | ?       | > +20 d       | (1, 2, 3) 
OGLE-2015-SN-021          | 01:38:59.59  | -69:03:46.1 | 20150115   | OGLE         | 19.1      | 0.08    | Ia      | At max        | (4)    
MASTERJ074858.45-655344.6 | 07:48:58.45  | -65:53:44.6 | 20150115   | MASTER       | 16.9      | 0       | Star    | -             |   
LSQ15cj                   | 11:31:20.90  | -04:02:42.2 | 20141224   | LSQ          | 19.7      | 0.054   | Ic      | +11 d         | (2) 
LSQ15ck                   | 10:21:05.41  | -10:25:06.9 | 20150112   | LSQ          | 20.4      | 0.05    | II      | +6 d          | (5) 
LSQ15dh                   | 11:45:04.18  | -13:03:26.2 | 20141225   | LSQ          | 19.3      | 0.040   | II      | +12 d         | (2) 

(1) Redshift from the galaxy spectrum.
(2) Phase from the light curve.
(3) Blue continuum.
(4) Best fit with SNID is a type Ia-91T.
(5) Phase from best SNID fit to SN1999em.