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ePESSTO spectroscopic classification of optical transients

ATel #11014; K. M. Lopez (SRON/RU), Z. Kostrzewa-Rutkowska (SRON/RU), G. Cannizzaro (SRON/RU), P. G. Jonker (SRON/RU), F. Onori (SRON/RU), T.-W. Chen (MPE), M. Fraser (University College Dublin), J. Sollerman (OKC), C. Inserra (Southampton), 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), J. Tonry, B. Stalder, L. Denneau., A. Heinze, H. Weiland (IfA, Univ. of Hawaii), A. Rest (STScI)
on 27 Nov 2017; 16:54 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Francesca Onori (f.onori@sron.nl)

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). All observations were performed on the ESO New Technology Telescope at La Silla on 2017 Nov 26, 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 
 
ATLAS17nic     | SN2017ijk | 04:42:01.72 |-03:08:37.30 |  20171111  |  ATLAS   |   19.147 | 0.063 |  Ia  | at-max | (1) 
 
ATLAS17nhc     | AT2017iit | 05:03:20.16 | 18:27:03.14 |  20171118  |  ATLAS   |   17.884 | 0.017 |  ??  | ??     | (2) 
 
ATLAS17nkf     | SN2017imw | 09:57:04.59 |-35:10:51.40 |  20171124  |  ATLAS   |   18.842 | 0.035 |  Ia  | -7d    | (1) 
 
ATLAS17nfm     | SN2017ihg | 09:49:19.44 | 10:32:06.14 |  20171113  |  ATLAS   |   19.261 | 0.081 |  Ia  | +5d    | (1) 

(1) Redshift estimated with SNID
(2) Featurless spectrum, the transient is associated with galaxy UGC 03232 at redshift 0.017