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