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PESSTO spectroscopic classification of optical transients

ATel #5937; H. Campbell, N. Blagorodnova, M. Fraser, 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), Ilan 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)
on 1 Mar 2014; 16:58 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) and Pan-STARRS (see Valenti et al., ATel #2668). All observations were performed on the ESO New Technology Telescope at La Silla on 2014 Feb 28, 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 
PS1-14od | 03:21:06.23 | -07:16:57.4 | 20140225 | PS1 | 17.8 | 0.02 | IIb | ~max | (1) PS1-14mm | 05:56:32.33 | +09:34:53.3 | 20140221 | PS1 | 19.9 | - | - | - | (2) OGLE-2014-SN-023 | 08:26:16.29 | -69:52:22.0 | 20140225 | OGLE | 19.2 | 0 | Stellar | - | (3) LSQ14xm | 09:05:29.88 | +09:56:12.0 | 20140221 | LSQ | 20.8 | 0.16 | Ia | -4d | (4) LSQ14zz | 12:57:00.19 | -15:54:45.5 | 20140226 | LSQ | 19.4 | 0.05 | Ia | pre-max | PS1-14oo | 13:07:45.12 | +16:14:05.0 | 20140225 | PS1 | 19.0 | 0.05 | Ia | -4d | (5) PS1-14mv | 12:07:33.89 | +18:17:44.4 | 20140221 | PS1 | 19.8 | 0.14 | Ia | +14d | PS1-14oa | 15:40:17.81 | -27:13:48.6 | 20140224 | PS1 | 19.1 | 0.030 | II | young | (6) LSQ14yf | 14:02:36.66 | -18:06:13.5 | 20140223 | LSQ | 20.5 | 0.19 | Ia | ~max |

(1) Good matches to several type IIb SNe around maximum light.
(2) Not visible in acquisition image.
(3) Blue continuum with narrow H emission lines at z=0, consistent with a CV. Note that a preliminary classification was previously reported for this object in ATel #5934.
(4) Best match to SN 1991T-like templates.
(5) Best match to SN 1991T-like templates.
(6) Redshift measured from host galaxy emission. Spectrum is slightly blue, while the broad Halpha emission dominates over absorption, characteristic of a relatively young Type II SN.