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PESSTO spectroscopic classification of optical transients

ATel #6994; A. Nyholm, C. Fremling, K. Migotto, F. Taddia, J. Sollerman (OKC), J. Anderson (ESO), M. T. Botticella (INAF - Capodimonte), C. Inserra (QUB), K. Maguire (ESO), S. J. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, S. Rostami (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley)
on 26 Jan 2015; 15:46 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Francesco Taddia (ftadd@astro.su.se)

Subjects: Optical, Supernovae

PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2014, arXiv:1411.0299; http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by LSQ (Baltay et al. 2013, PASP, 125, 683), the All Sky Automated Survey for SuperNovae (ASAS-SN; http://www.astronomy.ohio-state.edu/~assassin/index.shtml ) and CRTS (Drake et al. 2009, ApJ, 696, 870; http://crts.caltech.edu/ ). All observations were performed on the ESO New Technology Telescope at La Silla on 2015-01-25, 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      | Note 
 
ASASSN-15cb                | 12:39:50.23 |  03:47:49.8 | 20150121   | ASASS       | 16.8      | 0.040 | Ia   | -3 to +3 d | 
CSS150123-025554+010011    | 02:55:53.99 |  01:00:10.8 | 20150123   | CSS         | 18.3      | 0.07  | Ia   | -7 to -4 d | 
LSQ15ex                    | 12:01:25.70 | -06:42:50.4 | 20150116   | LSQ         | 22.0      | 0.12  | Ia   | -3 to +3 d | (1) 
LSQ15ey                    | 14:12:05.08 | -07:23:36.8 | 20150120   | LSQ         | 19.5      | 0.038 | ?    | -          | (2) 

(1) Also good matches with Ia-91T with SNID.
(2) Blue featureless continuum.