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PESSTO spectroscopic classification of optical transients

ATel #5247; O. Yaron, A. De Cia, P. Vreeswijk (Weizmann), C. Barbarino, M. T. Botticella (INAF - Naples), N. Elias-Rosa (ICE-IEEC/CSIC Barcelona), E. S. Walker (Yale), M. Nicholl (QUB), R. Scalzo (ANU), A. Gal-Yam (Weizmann), S. Benetti, A. Pastorello, (INAF - Padova), S. Valenti (LCOGT/UCSB), S. Taubenberger (MPA Garching), S. J. Smartt, K. Smith, D. Young, M. Fraser, C. Inserra (QUB), M. Sullivan (Uni. of Southampton), C. Knapic, M. Molinaro, R. Smareglia (Trieste), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz (Yale), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley).
on 3 Aug 2013; 19:37 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ofer Yaron (ofer.yaron@weizmann.ac.il)

Subjects: Optical, Supernovae

PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Valenti et al., ATel #4037; http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by the La Silla-Quest survey (see Hadjiyska et al., ATel #3812). All observations were performed on the ESO New Technology Telescope at La Silla on 2013 August 03 (UT), using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and Superfit (Howell et al., 2005, ApJ, 634, 1190). Classification spectra can be obtained from http://www.pessto.org via WISeREP (Yaron & Gal-Yam, 2012, PASP, 124, 668).

  
 Name          | RA (J2000)  | Dec (J2000) | Disc. Date | Disc. Source | Disc Mag  |  z     | Type    | Phase | Notes 
LSQ13azj | 21:33:29.54 | -14:31:45.9 | 2013-07-14 | LSQ | 19.5 | 0 | Varstar | --- | Good match to M-dwarf. LSQ13bbb | 21:33:42.73 | -14:31:45.9 | 2013-07-15 | LSQ | 20.7 | ~0.2 | SO Gal | --- | (1) LSQ13bdc | 21:35:07.78 | -06:49:39.3 | 2013-07-17 | LSQ | 20.5 | ~0.07? | SN II? | +40d? | Not secure (2) LSQ13bbh | 22:23:08.51 | -05:18:16.7 | 2013-07-15 | LSQ | 19.3 | 0.125 | SN Ia | +12d | (3) LSQ13bhl | 23:46:35.11 | -36:45:30.4 | 2013-07-29 | LSQ | 19.0 | 0.09 | SN Ia | +17d | (4) LSQ13bgk | 22:32:33.82 | -30:55:01.4 | 2013-07-27 | LSQ | 18.1 | 0.03 | SN II | +10d | (5)

(1) Likely only galaxy light. Redshift estimate is based mainly on SNID matches.

(2) Likely a type II. Several reasonable matches for redshift around ~0.06-0.08 at >~1 month after peak light.

(3) Good match with several normal type Ia SNe within ~5 days of the indicated phase.

(4) Good match with several normal and 91T-like type Ia SNe within ~5 days of the indicated phase.

(5) Good match with several type II SNe within ~5 days of the indicated phase.