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ePESSTO spectroscopic classification of optical transients

ATel #10676; D. Homan (Univ. of Edinburgh), J. Lyman (Univ. of Warwick), L. Galbany (U. of Pittsburgh), J. P. Anderson (ESO), K. Maguire, E. Kankare, S. J. Smartt, K. W. Smith, D. Wright, D. Young (QUB), C. Inserra, M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron, I. Manulis (Weizmann), A. Moller, B. Tucker, B. Zhang, B. Schmidt (Australian National University), J. Tonry, B. Stalder, L. Denneau., A. Heinze, H. Weiland, K. C. Chambers, H. Flewelling, M. Huber, T. Lowe. E. Magnier, A. Schultz, C. Waters, R. J. Wainscoat, M. Wilman (IfA, Univ. of Hawaii), A. Rest (STScI), L. Wyrzykowski,(Warsaw Observatory, Poland)
on 29 Aug 2017; 15:17 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Lluis Galbany (lluisgalbany@gmail.com)

Subjects: Optical, Supernovae

ePESSTO, the extended 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 Skymapper Survey (see Scalzo et al. ATel #5480), the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680), the Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu ) 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 2017-08-28, 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 
SMT17snm    | AT2017gih | 21 03 01.03| -49 19 03.7 | 20170824   | SMT    | 19.68    | -     | -       | -           | (1) 
PTSS-17vke  | AT2017gip | 23 05 00.61| +28 45 42.7 | 20170827   | PTSS   | 18.80    | 0.031 | II      | +11 to +20 d| 
ATLAS17jxd  | AT2017gil | 01 11 46.89| +07 21 46.7 | 20170826   | ATLAS  | 19.09    | 0.094 | Ia      | -7 to -4 d  | 
SMT17srp    | AT2017ghw | 23 57 34.75| +02 05 11.1 | 20170825   | SMT    | 18.62    | 0.076 | IIn     | >+20 d      | 
PS17ehc     | SN2017ggl | 21 56 47.17| -10 16 54.3 | 20170815   | PS1    | 18.36    | 0.063 | Ia-91T  | +8 to +10 d | 
PS17edg     | AT2017gjb | 02 51 44.91| -39 39 29.0 | 20170814   | PS1    | 20.30    | -     | Gal     | -           | (2) 
PTSS-17ugh  | AT2017ggv | 22 54 28.69| -13 31 50.5 | 20170822   | PTSS   | 17.30    | 0.025 | IIn     | -           |   
SMT17smz    | AT2017gig | 00 36 32.93| -30 34 55.4 | 20170823   | SMT    | 19.09    | 0.065 | Ia      | at max      | 
PS17ebt     | AT2017gjc | 01 01 27.77| -20 24 14.0 | 20170810   | PS1    | 19.74    | 0.063 | Gal     | -           | (2) 
ATLAS17jxe  | AT2017gin | 00 55 58.57| -09 37 35.3 | 20170802   | ATLAS  | 18.62    | 0.057 | Ia      | at max      | 
OGLE17nif   | -         | 00 34 06.82| -72 45 51.9 | 20170726   | OGLE   | 21.00    | 0.000 | Stellar | -           | (3) 

(1) Blue continuum with a bump at 4600 A.
(2) No obvious transient signal, appears as a galaxy spectrum.
(3) Blue featureless continuum with Halpha emission at z=0.