ePESSTO spectroscopic classification of optical transients

ATel #10846; E. Kankare (QUB), D. O'Neill (QUB), M. Magee (QUB), T.-W. Chen (MPE), L. Galbany (U. Pittsburgh), C. Inserra (Southampton), 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), J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), A. Rest (STScI), K. C. Chambers, H. Flewelling, M. Huber, T. Lowe. E. Magnier, A. Schultz, C. Waters, R. J. Wainscoat, M. Wilman (IfA, Univ. Hawaii)
on 12 Oct 2017; 18:51 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mark Magee (mmagee37@qub.ac.uk)

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 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 ), the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts), and the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014, ApJ, 788, 48 and http://www.astronomy.ohio-state.edu/~assassin/index.shtml ). All observations were performed on the ESO New Technology Telescope at La Silla on 2017 10 11, 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 
Gaia17cke    | AT2017gyv     | 17 30 31.28 | -32 42 14.9 | 20170922   | Gaia    |   16.76  | -     | CV      | -         | (1) 
ATLAS17lzl   | AT2017hfx     | 20 03 04.84 | -02 34 19.7 | 20170928   | ATLAS   |   17.31  | ?     | ?       | ?         | (2) 
ASASSN-17ng  | SN2017hgz     | 21 48 20.08 | -34 57 10.6 | 20171010   | ASASSN  |   15.50  | 0.016 | Ia      | max       | (3) 
ATLAS17lwk   | SN2017hhl     | 23 15 11.82 | -27 54 40.2 | 20171007   | ATLAS   |   18.42  | 0.030 | II      | young     | (3) 
ATLAS17lyt   | SN2017hej     | 23 42 07.61 | -17 12 07.8 | 20170926   | ATLAS   |   19.11  | 0.056 | II      | young     |  
Gaia17cno    | SN2017hef     | 03 46 43.70 | -46 37 19.3 | 20171006   | Gaia    |   18.02  | 0.070 | Ia      | +12       |  
Gaia17cmo    | AT2017hbc     | 23 04 40.93 | -36 57 54.1 | 20171002   | Gaia    |   18.40  | 0.059 | ?       | -         | (3), (4) 
ASASSN-17nc  | SN2017hdn     | 03 35 32.56 | -61 16 45.7 | 20171008   | ASASSN  |   16.50  | 0.027 | Ia      | max       | 
Gaia17cni    | SN2017hcx     | 03 54 40.44 | -40 52 45.1 | 20171004   | Gaia    |   17.86  | 0.060 | Ia      | +5        | 
PS17eox      | AT2017gso     | 23 19 53.98 | -18 28 36.3 | 20170913   | PS1     |   18.87  | 0.079 | ?       | -         | (3), (4) 
Gaia17cmx    | SN2017hbv     | 03 31 45.38 | -39 36 51.6 | 20171003   | Gaia    |   18.81  | 0.114 | Ia      | +9        | 

(1) Spectrum shows strong Balmer and Ca II emission features at z=0.
(2) Noisy, blue continuum.
(3) Redshift from host galaxy.
(4) Blue continuum with narrow Balmer emission at host redshift.