PESSTO spectroscopic classification of optical transients

ATel #9523; P. James (LJMU), L. Short (LJMU), S. Prentice (LJMU), J. Anderson (ESO), R. Cartier (Southampton), C. Inserra (QUB), E. Kankare (QUB), K. Maguire (QUB), S. J. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), L. Wyrzykowski (Warsaw Observatory)
on 21 Sep 2016; 17:05 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Philip James (P.A.James@ljmu.ac.uk)

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PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts), and the 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 2016 September 20th, 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 and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.

 
Survey Name | IAU Name  | RA (J2000)  | Dec (J2000) | Disc. Date | Source | Disc Mag |  z    | Type | Phase | Notes 
Gaia16bgd   | SN2016ggp | 20:32:39.46 | -56:58:36.7 |  20160910  |  Gaia  |  18.27   | 0.048 |  Ia  | +1d   | (1) 
OGLE16dco   |           | 03:24:28.98 | -73:06:42.8 |  20160913  |  OGLE  |  19.75   | 0.066 |  Ia  | -4d   | (2) 

(1) SNID best fit is to Type Ia SN2002hd at z = 0.048 +- 0.002
(2) SNID best fit is to 91T-like Type Ia SN2007S at z = 0.066 +- 0.007 but is best represented by normal Ia templates