PESSTO spectroscopic classification of optical transients

ATel #5331; E. Kankare, T. Kangas (University of Turku), C. Inserra (QUB), S. Mattila (University of Turku), M. Fraser (QUB), R. Scalzo (ANU), M. Nicholl (QUB), A. Gal-Yam, O Yaron (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).
on 27 Aug 2013; 16:32 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cosimo Inserra (c.inserra@qub.ac.uk)

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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) and TOCP webpages. All observations were performed on the ESO New Technology Telescope at La Silla on 2013 August 26 (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 
 
LSQ13bsi                | 21:37:16.30  | -27:06:31.7  | 2013-08-14 |     LSQ      | 19.6      | ~0.09 | SN Ia   |  ~10d past max  |  
LSQ13bsj                | 20:28:55.51  | -30:04:02.3  | 2013-08-14 |     LSQ      | 18.7      | 0.00  |   CV    |     N/A         | (1) 
LSQ13bud                | 22:05:29.52  | -28:45:09.5  | 2013-08-16 |     LSQ      | 19.2      | ~0.10 | SN Ia   |  ~7d past max   |  
LSQ13bus                | 22:04:07.35  | -08:34:28.0  | 2013-08-17 |     LSQ      | 19.2      | ~0.07 | SN II   |     +8d         | (2) 
LSQ13bwg                | 23:55:45.10  | -02:10:52.8  | 2013-08-20 |     LSQ      | 19.0      | ~0.03 | SN Ibc  |  ~40d past max  |  
LSQ13bwu                | 03:08:15.61  | -24:40:21.3  | 2013-08-21 |     LSQ      | 18.6      | ~0.03 | SN II   |      ----       | (3) 
LSQ13bxh                | 21:10:20.11  | -17:48:23.6  | 2013-08-21 |     LSQ      | 16.7      | 0.00  |   CV    |     N/A         | (4) 
LSQ13bym                | 23:52:15.13  | -22:21:06.8  | 2013-08-25 |     LSQ      | 19.0      | ~0.03 | SN II   |  ~5-7 days after explosion   | 
PSNJ 17194328-7721305   | 17:19:43.27  | -77:21:30.4  | 2013-08-25 |     TOCP     | 14.4      | ~0.009| SN Ia   |  ~4d pre max    | 

(1) The spectrum shows broad Balmer lines (FWHM~2300 km/s) and He I. Rise and decrease from apparent maximum of ~2 mags in 2 days. Likely a CV or a nova candidate.

(2) Type II. Best match with SN 2004et soon after maximum light.

(3) Type II at ~2 weeks from explosion with the best match found with SN 2004et.

(4) The spectrum shows Balmer lines (FWHM~1600 km/s) and He I. Fast rise (~3 mags in 4 days) and fast decrease (again ~3 mags in 4 days). Likely a CV or a nova candidate.