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PESSTO spectroscopic classification of optical transients

ATel #9542; S. Prentice (LJMU), P. James (LJMU), J. Anderson (ESO), L. Short (LJMU), L. Galbany (Univ. de Chile), S. Taubenberger (ESO), 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), 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 24 Sep 2016; 19:06 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Philip James (P.A.James@ljmu.ac.uk)

Subjects: Optical, Supernovae

Referred to by ATel #: 9543

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 OGLE-IV Real-time Transient Search (Wyrzykowski et al., 2014 arxiv:1409.1095; http://ogle.astrouw.edu.pl/ ), Pan-STARRS Survey for Transients (see Huber et al., ATel #7153), from the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts), and from the IAU TNS list (see https://wis-tns.weizmann.ac.il/). All observations were performed on the ESO New Technology Telescope at La Silla on 2016 September 23rd, 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 
Gaia16bix   | AT2016gjy | 19:03:09.46 | -09:55:15.5 | 20160919   | Gaia        |  17.59   |       | Var   |        | (1) 
Gaia16bip   | AT2016gjn | 19:13:31.60 | -12:57:28.2 | 20160916   | Gaia        |  16.65   |       | Var   |        | (1) 
PS16ejh     | SN2016gkt | 23:59:26.19 | -24:25:26.7 | 20160921   | Pan-STARRS1 |  16.65   | 0.051 | Ia    |  +12   | (2) 
PTSS-16olg  | AT2016gjs | 23:28:54.51 | +19:46:28.6 | 20160920   | PTSS        |  18.50   |       | unk   |        | (3) 
Gaia16bjq   | AT2016gld | 20:46:58.75 | -25:47:05.9 | 20160921   | Gaia        |  18.56   | 0.063 | unk   |        | (4) 
Gaia16bjr   | AT2016gle | 20:29:52.12 | -20:17:24.1 | 20160921   | Gaia        |  18.44   |       | unk   |        | (5) 
PS16ejp     | SN2016glp | 23:36:14.00 | +23:41:45.3 | 20160919   | Pan-STARRS1 |  19.49   | 0.087 | Ia    |  -5    | (6) 
PS16ejr     | SN2016glr | 00:07:51.91 | -25:15:09.2 | 20160921   | Pan-STARRS1 |  19.73   | 0.156 | Ia    |  -6    | (7) 
Gaia16bjd   | SN2016gke | 00:56:11.50 | -46:44:35.8 | 20160906   | Gaia        |  19.25   | 0.082 | Ia    |  +8    | (8) 
Gaia16bjo   | SN2016glb | 02:10:08.16 | -48:38:24.3 | 20160921   | Gaia        |  18.89   | 0.046 | II    |  +4    | (9) 
PTSS-16oqc  | SN2016gmb | 00:34:44.67 | -06:09:34.3 | 20160923   | PTSS        |  17.90   | 0.058 | Ia    |  -8    | (10) 
Gaia16bhg   | SN2016gho | 04:17:50.45 | -04:47:42.3 | 20160914   | Gaia        |  17.07   | 0.038 | Ia    |  +6    | (11) 
OGLE16dmu   |           | 04:48:26.34 | -62:20:10.6 | 20160902   | OGLE        |  20.43   | 0.426 | SLSN  |  Peak  | (12) 

(1) Spectrum appears stellar in nature
(2) SNID best fit is to Type Ia SN 2008C
(3) Noisy blue spectrum, some absorption features around 3900 A and 4500 A (observer frame)
(4) Noisy spectrum, hints of a Type I SN but classification ambiguous
(5) Noisy spectrum, no clear features
(6) SNID best matches Type SN 1992A at z = 0.086 however best template is Ia at z = 0.076
(7) SNID best fit is Type Ia SN 2002er
(8) Shows spectral similarity to Type Ia SN 2005eu at +8 days according to SNID
(9) SNID matches Type II SN 2004et at +4 days
(10) SNID best fit is Type Ia SN 2003du at -8 days
(11) SNID best match is Type Ia SN 1994M
(12) Apparent host absorption around 2800 A, a good match with OGLE15qz at peak