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PESSTO spectroscopic classification of optical transients

ATel #5284; P. Vreeswijk, A. De Cia (Weizmann), C. Barbarino (INAF - Naples), C. Inserra, T.-W. Chen, M. Fraser (QUB), R. Scalzo (ANU), E. S. Walker (Yale), 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 (QUB), M. Sullivan (Uni. of Southampton), C. Knapic, M. Molinaro, R. Smareglia (Trieste), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, E. S. Walker (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley), Lukasz Wyrzykowski (OGLE)
on 15 Aug 2013; 16:56 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cosimo Inserra (c.inserra@qub.ac.uk)

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), the OGLE-IV Transient Search (see Wyrzykowski et al., ATEL #4495) the Catalina Real-time Transient Survey (http://crts.caltech.edu/) All observations were performed on the ESO New Technology Telescope at La Silla on 2013 August 14 (UT), 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 (Yaron & Gal-Yam, 2012, PASP, 124, 668).

  
Name                   | RA (J2000)   | Dec (J2000)  | Disc. Date | Disc. Source | Disc Mag  |  z    | Type  |   Phase    | Notes 
CSS130809222004-213922 | 22:20:03.52 | -21:39:22.2 | 2013-08-09 | CSS | 18.8 | ~0.05 | SN II | --- | (1) LSQ13bll | 21:06:36.94 | -70:52:24.8 | 2013-08-07 | LSQ | 19.6 | ~0.07 | SN Ia | around max | LSQ13bns | 21:50:37.38 | -17:59:58.2 | 2013-08-11 | LSQ | 19.9 | ~0.05 | SN II | --- | (2) LSQ13bnx | 02:02:31.69 | -30:38:12.0 | 2013-08-10 | LSQ | 18.0 | ~0.06 | SN II | --- | (3) LSQ13bpc | 23:08:42.22 | -38:07:17.1 | 2013-08-12 | LSQ | 18.6 | ~0.05 | SN Ia | around max | LSQ13bpe | 00:57:06.74 | -37:15:31.7 | 2013-08-12 | LSQ | 19.3 | ~0.09 | SN Ia | ~ -7 | OGLE-2013-SN-044 | 00:18:50.37 | -77:33:32.9 | 2013-08-07 | OGLE | 18.8 | ~0.07 | SN Ia | ~ +10 | OGLE-2013-SN-047 | 23:40:35.47 | -64:24:22.7 | 2013-08-11 | OGLE | 18.4 | ~0.06 | SN II | ~ +10 | (4)

(1)Young Type II, featureless blue continuum and shallow Halpha P-Cygni profile.

(2) Young SN II around 1-2 week post explosion. According with LSQ magnitudes the peak is fainter than the average of Type II.

(3) Young type II around 1-2 week post explosion. Long rise time.

(4) According with OGLE photometry the peak luminosity is higher than the average of Type II.