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PESSTO spectroscopic classification of optical transients

ATel #5938; M. Fraser, H. Campbell, N. Blagorodnova, N. Walton (IoA), J. Anderson (ESO Chile), M. T. Botticella (INAF - Capodimonte), S. Benetti, A. Pastorello (Padova), C. Inserra, S. Smartt, 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), D. Wright, R. Kotak, (QUB), S. Valenti (LCOGT), 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), L. Wyrzykowski (Warsaw Observatory, Poland), R. Scalzo, F. Yuan, M. Childress, B. Tucker, B. Schmidt (Australian National University)
on 2 Mar 2014; 17:36 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Morgan Fraser (mf@ast.cam.ac.uk)

Subjects: Optical, Supernovae

Referred to by ATel #: 5975

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), the OGLE-IV Transient Search (ATel #4495; Wyrzykowski et al. 2012), Pan-STARRS (see Valenti et al., ATel #2668), SkyMapper (Scalzo et al. ATel #5480), 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 2014 Mar 1, 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 
SKY_J5271481-4716073 | 05:27:14.81 | -47:16:07.3 | 20140127 | SkyMapper | 20.9 | 0.093 | Gal | - | (1) MLS140220-081342+181306 | 08:13:41.87 | +18:13:05.8 | 20140220 | CRTS | 19.7 | ? | ? | ? | (2) LSQ14abd | 08:56:31.05 | +19:16:20.7 | 20140227 | LSQ | 20.0 | 0.1 | Ia | -7d | OGLE-2014-SN-024 | 06:01:15.45 | -78:18:21.8 | 20140219 | OGLE | 20.3 | 0.1 | Ia | -2d | (3) PS1-14nt | 14:46:54.78 | +23:41:26.9 | 20140223 | PS1 | 19.7 | 0.048 | II | ~50d | (4) LSQ14aab | 13:37:15.05 | -14:49:08.1 | 20140226 | LSQ | 18.8 | ? | ? | ? | (5) PS1-14ny | 15:25:50.13 | -25:02:52.6 | 20140224 | PS1 | 19.8 | 0.09 | Ia | +11d | LSQ14zl | 14:33:02.47 | -24:17:28.6 | 20140224 | LSQ | 18.8 | 0 | Stellar | - | (6) LSQ14uv | 15:52:34.67 | -15:29:05.1 | 20140221 | LSQ | 17.7 | 0 | Stellar | - | (7)

(1) Spectrum consists only of host galaxy light, redshift measured from galaxy Halpha emission.
(2) Featureless, slightly blue continuum.
(3) Best matches to SN 1991T-like templates.
(4) Redshift is that of host galaxy from SDSS, which is consistent with the redshift of the best-fitting SN templates.
(5) Low S/N spectrum shows a featureless, flat continuum.
(6) Very blue, featureless continuum, consistent with a CV.
(7) Very red spectrum with broad molecular bands, consistent with an M dwarf flare.