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PESSTO spectroscopic classification of optical transients

ATel #8369; S. Baumont, L. Le Guillou, R. Le Breton (LPNHE), J. Anderson (ESO), L. Galbany (DAS, MAS), C. Inserra (QUB), E. Kankare (QUB), K. Maguire (QUB), S. J. Smartt (QUB), K. Smith (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), D. Young (QUB), I. Manulis, O. Yaron (Weizmann), D. Wright (QUB), K. Chambers, H. Flewelling, M. Huber, E. Magnier, J. Tonry, C. Waters, R. J. Wainscoat (IfA, Univ. Hawaii), L. Wyrzykowski (Warsaw Observatory, Poland)
on 5 Dec 2015; 16:10 UT
Credential Certification: Sylvain Baumont (baumont@lpnhe.in2p3.fr)

Subjects: Optical, Supernovae

Referred to by ATel #: 8485

PESSTO, the Public ESO Spectroscopic Survey for Transient The Objects (see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by Pan-STARRS Survey for Transients (see Huber et al., ATel #7153) and OGLE-IV Real-time Transient Search (Wyrzykowski et al., 2014 arxiv:1409.1095; http://ogle.astrouw.edu.pl/ ). All observations were performed on the ESO New Technology Telescope at La Silla on 2015 December 04, 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
OGLE15sd | 01 42 21.46 | -71 47 15.6 | 2015 10 12 | OGLE | 21.0 | 0.56 | SLSN | +1 week | (1) PS15dbd | 05 56 52.94 | -22 00 45.9 | 2015 12 01 | Pan-STARRS | 18.1 | 0.044 | Ia | >2 weeks | (2)

(1) Low S/N, non-photometric spectrum. Broad features are similar to PTF09cnd, although the continuum seems redder than for other SLSN at this phase.
(2) Redshift obtained from the SN spectrum (+/- 0.005). The host galaxy is at z=0.0469 (6dFGS J055653.7-220035).