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PESSTO spectroscopic classification of optical transients

ATel #6107; S. Benitez (MPA), J. Polshaw (QUB), K. Maguire (ESO), S. Benetti, A. Pastorello (Padova), C. Inserra, R. Kotak, S. Smartt, K. Smith, D. Wright, D. Young (QUB), M. Sullivan (Southampton), S. Taubenberger (MPA), S. Valenti (LCOGT), M. Fraser (IoA), O. Yaron, A. Gal-Yam, (Weizmann), C. Knapic, R. Smareglia, M. Molinaro (Trieste), W. Burgett, K. Chambers, M. Huber, R. P. Kudritzki, E. Magnier, J. Morgan, C. Stubbs, W. Sweeney, J. Tonry, C. Waters (IfA, Univ. Hawaii), P. Draper, N. Metcalfe (Univ. of Durham), A. Rest (STScI)
on 29 Apr 2014; 17:38 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Kate Maguire (kate.maguire@eso.org)

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. The targets were supplied by Pan-STARRS1 3Pi transients (see Smartt et al., ATel #5850) and the Catalina Real-time Transient Survey (http://crts.caltech.edu/). The observations were performed on the ESO New Technology Telescope at La Silla in the night starting on 2014 April 28 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).

 
Name     	        | RA (J2000)  | Dec (J2000) | Disc. Date | Disc. Source  |    Disc Mag   |   z     | Type    | Phase        | Notes 
CSS140424-123226+154840 | 12:32:25.66 | +15:48:39.5 | 20140424 	 |  CRTS 	 |	18.6 	 | 0.17    | SN Ia   | ~-7 d        | 		 
CSS140424-133007-212728 | 13:30:07.18 | -21:27:28.0 | 20140424 	 |  CRTS 	 |	16.7 	 | 0.019   | -       | -            | (1)	 
CSS140426-171938-010130 | 17:19:38.28 | -01:01:30.0 | 20140426 	 |  CRTS 	 |	17.3 	 | 0.033   | SN Ia   | ~+7 d        | 		 
CSS140427-222246+192845 | 22:22:46.07 | +19:28:45.4 | 20140427   |  CRTS 	 |	18.1	 | 0.06    | SN Ia   | around max   | (2) 
PS1-14xv 		| 16:02:20.35 | +05:12:40.2 | 20140423   |  PS1		 |      19.1     | 0.064   | SN Ia   | ~+35 d       | 
PS1-14xw		| 16:52:57.63 | +02:23:36.5 | 20140423   |  PS1		 |      18.9     | 0.02	   | SN Ia   | ~-7 d        | 

(1) An almost featureless spectrum, with narrow H-alpha emission at the redshift of the host galaxy (z=0.019).
(2) Best fit to SN 1999aa at -1 d with respect to maximum.