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PESSTO spectroscopic classification of optical transients

ATel #4059; S. Valenti (INAF - Padova Astronomical Observatory), S. Benitez-Herrera, S. Taubenberger (MPA Garching), A. Pastorello, S. Benetti (INAF - Padova Astronomical Observatory), S. J. Smartt, D. Young (Queen's University Belfast), M. Sullivan (University of Oxford), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz (Yale University), P. Nugent (LBNL/UCB), A. Gal-Yam, O. Yaron (Weizmann Institute for Science), on behalf of the PESSTO collaboration.
on 21 Apr 2012; 15:11 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stephen Smartt (s.smartt@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 12 supernova classifications. Observations were performed on the ESO New Technology Telescope at La Silla on 2012 April 20, 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). All classification spectra are publicly available and can be obtained from http://www.pessto.org (via WISEASS). Nine of the targets were supplied by the La Silla-Quest survey (see Hadjiyska et al., ATel #3812), the other three from the CRTS (see Drake et al. ATel #4011).

Name                    | RA (J2000)  | Dec (J2000) | Disc. Date | Disc. source | Disc. Mag | Redshift | Type   |   Phase  | Notes 
LSQ12blb | 14:47:58.13 | +17:32:05.6 | 20120327 | LSQ | 18.3 | 0.052 | IIP | ~4 weeks | M=-18.4; host Mr=-21.6 LSQ12bmn | 14:27:11.30 | +18:35:24.4 | 20120330 | LSQ | 18.1 | 0.083 | Ia | +16d | host Mr=-18.7 LSQ12bve | 12:40:58.32 | -05:21:49.0 | 20120415 | LSQ | 18.8 | 0.080 | Ia | +16d | host Mr=-16.9 LSQ12bvl | 14:13:00.65 | -05:48:12.2 | 20120415 | LSQ | 18.1 | 0.065 | Ia | +1d | host M=-17.6 LSQ12bxp | 15:32:16.25 | -22:28:27.8 | 20120416 | LSQ | 18.8 | 0.110 | Ia | +9d | apparently hostless LSQ12bxu | 14:27:24.55 | -20:54:25.2 | 20120416 | LSQ | 19.6 | 0.124 | Ia | +12d | host Mr=-18.2 LSQ12bxv | 14:27:15.55 | -12:12:42.5 | 20120416 | LSQ | 19.3 | 0.098 | Ia | -5d | LSQ12byi | 15:48:11.38 | -03:35:57.5 | 20120417 | LSQ | 19.0 | 0.104 | Ia | 0d | hostless or very remote; high Galactic extinction LSQ12bzs | 15:13:40.78 | -19:26:54.6 | 20120418 | LSQ | 19.3 | 0.085 | Ia_pec | -4d | 91T-like CSS120413:132702-014513 | 13:27:02.04 | -01:45:12.7 | 20120413 | CRTS | 18.5 | 0.084 | Ia_pec | 0d | 91T-like; host Mr=-17.1 SSS120416:211543-192250 | 21:15:43.27 | -19:22:50.1 | 20120416 | CRTS | 17.3 | 0.040 | Ia | +10d | remote location; host Mr=-16.6 CSS120419:150732+203260 | 15:07:32.00 | +20:32:60.0 | 20120419 | CRTS | 18.5 | 0.077 | Ia | +7d | host Mr=-17.3