PESSTO spectroscopic classification of optical transients
ATel #5510; M. Turatto, S. Spiro, S. Benetti, E. Cappellaro (INAF - Padova Astronomical Observatory), N. Elias-Rosa (INAF - Padova Astronomical Observatory/ICE-IEEC/CSIC Barcelona), M. Fraser (University of Cambridge), K. Maguire (ESO), A. Pastorello, (INAF - Padova Astronomical Observatory), S. Valenti (LCOGT/UCSB), S. Taubenberger (MPA Garching), S. J. Smartt, K. Smith, D. Young, C. Inserra (Queen's University Belfast), M. Sullivan (University of Southampton), A. Gal-Yam, O. Yaron, I. Manulis (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)
on 25 Oct 2013; 15:32 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: N. Elias-Rosa (nancy.elias@oapd.inaf.it)
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 OGLE-IV Transient Search (see Wyrzykowski et al., ATEL #4495) and the La Silla-Quest survey (see Hadjiyska et al., ATel #3812). All observations were performed on the ESO New Technology Telescope at La Silla on 2013 October 24, 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-2013-SN-91 | 05 44 44.23 | -63 55 51.0 | 20131010 | OGLE | 18.5 | 0.08 | Ic | few days after maximum | (1)
OGLE-2013-SN-96 | 05 39 38.80 | -60 39 32.1 | 20131019 | OGLE | 19.6 | 0.11 | Ia | few days before maximum | (2)
LSQ13cpk | 02 31 03.77 | -20 08 49.5 | 20131012 | LSQ | 18.5 | 0.033 | Ia | around maximum | (3)
LSQ13crf | 03 10 50.23 | 01 25 18.9 | 20131017 | LSQ | 18.8 | 0.06 | Ia | a week before maximum | (4)
OGLE-2013-SN-103 | 02 46 12.83 | -71 50 44.9 | 20131017 | OGLE | 18.7 | --- | --- | --- | (5)
(1) Good match with several normal type Ic SNe around a week after their maximum light.
(2) Good match with several normal type Ia SNe 2-4 days before their maximum light.
(3) Good match with several normal type Ia SNe around maximum light.
(4) Good match with several normal type Ia SNe around a week before their maximum light.
(5) Very low signal-to-noise. Some broad features in the spectrum but not definite match with SN templates.