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PESSTO spectroscopic classification of optical transients

ATel #5459; J. Polshaw, T.-W. Chen, C. Inserra, E. Reilly (QUB), J. Anderson (U. de Chile), A. Pastorello (INAF - Padova), 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), Lukasz Wyrzykowski (OGLE), S. Benetti (INAF - Padova Astronomical Observatory), S. Valenti (LCOGT/UCSB), S. Taubenberger (MPA Garching), S. J. Smartt, K. Smith, D. Young (Queen's University Belfast), M. Fraser (University of Cambridge), M. Sullivan (University of Southampton), A. Gal-Yam, O. Yaron (Weizmann Institute for Science)
on 9 Oct 2013; 18:42 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cosimo Inserra (c.inserra@qub.ac.uk)

Subjects: Optical, Supernovae

Referred to by ATel #: 5488

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). The observation of OGLE-2013-SN-088 was performed on the ESO New Technology Telescope at La Silla on 2013 October 09 (UT), using EFOSC2 and Grism 13 (3985-9315A, 3A 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 (Yaron & Gal-Yam, 2012, PASP, 124, 668).

 
Name              | RA (J2000)  | Dec (J2000)  | Disc. Date | Disc.Source | Disc Mag  |  z    | Type  | Phase  | Notes 
LSQ13cnl | 00:14:56.20 | -30:33:28.1 | 2013-09-29 | LSQ | 20.07 | ~0.065| SN Ia | at max | (1) OGLE-2013-SN-088 | 4:27:44.75 | -67:24:22.4 | 2013-08-04 | OGLE | 20.839 | ~0.168| AGN | - | (2)

(1) Correction of the declination of LSQ13cnl (see ATEL #5453).

(2) The spectrum shows a blue continuum with narrow lines of [O III] 4959, 5007, [O II] 3727 and [Ne III] 3869, allowing us to determine a redshift of 0.168 and an absolute magnitude of M<-20. Broad (~15000 km/s) double peaked emission lines are consistent with the hydrogen Balmer series. We conclude that this transient is an AGN of possible class Seyfert 1.5