PESSTO spectroscopic classification of optical transients

ATel #6089; J. Polshaw (QUB), S. Benitez (MPA), M. Nicholl, S. J. Smartt (QUB), M. Fraser (IoA), N. Elias-Rosa (INAF - Padova/ICE-IEEC/CSIC Barcelona), J. Anderson (ESO Chile), S. Benetti, A. Pastorello (INAF - Padova), C. Inserra, K. Smith, D. Young (QUB), M. Sullivan (Southampton), S. Taubenberger (MPA), S. Valenti (LCOGT), O. Yaron, A. Gal-Yam, (Weizmann), C. Knapic, R. Smareglia, M. Molinaro (Trieste), I. Manulis (Weizmann), 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 22 Apr 2014; 15:15 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stephen Smartt (s.smartt@qub.ac.uk)

Tweet

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 Baltay et al. 2013, PASP, 125, 683) and the IAU Transient Objects Confirmation Page list. All observations were performed on the ESO New Technology Telescope at La Silla on 2014 Apr 21, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using 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   
LSQ14aqz                 | 10:34:48.43 | +21:39:42.0 | 20140329   | LSQ          | 17.9     | 0.0044| Ibc     | >100 d (1) 
LSQ14azn                 | 11:56:19.96 | -19:17:27.3 | 20140326   | LSQ          | 19.3     | 0.08  | Ia      | + 7-10 d  (2)  
LSQ14ayn                 | 13:04:05.20 | -13:29:22.0 | 20140324   | LSQ          | 20.0     | 0.08  | Ia      | + 5-7 d   
LSQ14aqn                 | 15:37:36.47 | -02:49:36.9 | 20140329   | LSQ          | 20.0     | 0.09  | Ia      | + 2 weeks (3) 
LSQ14bcr                 | 16:19:38.28 | -03:07:50.5 | 20140402   | LSQ          | 20.4     | 0.07  | Ia      | ~max    

(1) SNID finds good matches to several stripped-envelope SNe in the nebular phase (100-200 days after max). Host is NGC 3287 (~22 Mpc).
(2) SNID finds good matches to both normal and 91T-like SNe Ia at this phase.
(3) SNID finds good matches to both normal and 91T-like SNe Ia at this phase.