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PESSTO spectroscopic classification of optical transients

ATel #5380; T. Kangas, E. Kankare (University of Turku), C. Inserra (QUB), S. Mattila (University of Turku), K. Maguire (University of Oxford), A. Pastorello (INAF - PAdova) A. Gal-Yam, O. Yaron, I. Manulis (Weizmann), S. Benetti (INAF - Padova), S. Valenti (LCOGT/UCSB), S. Taubenberger (MPA Garching), S. J. Smartt, K. Smith, D. Young, M. Fraser (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 9 Sep 2013; 15:23 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) and 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 September 08 (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 
CSS130905:012848-003631 | 01:28:47.62 | -00:36:30.7 | 2013-09-05 | CRTS | 18.6 | ---- | ---- | --- | (1) CSS130903:012242+181655 | 01:22:41.50 | +18:16:54.7 | 2013-09-03 | CRTS | 19.1 | ~0.06 | SN II | --- | (2) LSQ13ccw | 21:35:51.64 | -18:32:52.0 | 2013-09-04 | LSQ | 19.1 | ~0.06 | SN Ibn| --- | (3)

(1) Featureless continuum.

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

(3) Type Ibn SN after maximum light. The LSQ lightcurve shows a declining of ~0.6 in 4 days.