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PESSTO spectroscopic classification of optical transients

ATel #4696; J. Sollerman, F. Taddia, M. Ergon (OKC/Stockholm), G. Leloudas (OKC/Stockholm, DARK/NBI), M. T. Botticella (INAF - Capodimonte Astronomical Observatory), A. De Cia (Weizmann Institute for Science), 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), S. Benetti, A. Pastorello, (INAF - Padova Astronomical Observatory), S. Valenti (LCOGT/UCSB), S. Taubenberger (MPA Garching), S. J. Smartt, K. Smith, D. Young (Queen's University Belfast), M. Sullivan (University of Southampton), A. Gal-Yam, O. Yaron (Weizmann Institute for Science)
on 2 Jan 2013; 19:32 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Giorgos Leloudas (giorgos@dark-cosmology.dk)

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 OGLE-IV Transient Search (see Wyrzykowski et al. ATEL #4495). All observations were performed on the ESO New Technology Telescope at La Silla on 2013 January 1st, 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
OGLE-2012-SN-048 | 01 23 14.23 | -72 19 54.6 | 20121224 | OGLE-IV | 18.5 | 0.067 | IIn | +3w (*) | (*) OGLE-2012-SN-049 | 00 37 48.08 | -70 44 46.5 | 20121224 | OGLE-IV | 19.0 | 0.07 | Ia | +4d | Match to 2007co OGLE-2012-SN-050 | 05 52 34.36 | -65 26 59.7 | 20121231 | OGLE-IV | 19.0 | 0.082 | IIn | young | fast rising LSQ12hxg | 04 11 47.41 | -05 55 08.1 | 20121224 | LSQ | 19.2 | 0.039 | IIn | - | (**)

(*) Days since explosion, based on the OGLE-IV light curve. This object shows narrow and broad H-alpha components (FWHM = 5000 km/s).

(**) See also ATel #4693. The narrow component of the H-alpha line shows a relatively large FHWM of 2800 km/s. A broad feature at 6100 AA (FWHM = 6600 km/s) is tentatively identified as He I 5876.