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ePESSTO spectroscopic classification of optical transients

ATel #10906; D. O'Neill (QUB), M. Magee (QUB), J. Anderson (ESO), M. Dennefeld (IAP/UMPC), 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 29 Oct 2017; 19:26 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), 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 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 
ASASSN-17nz  | SN2017hpj     | 23 54 20.56 | -17 18 21.0 | 20171024   | ASASSN  |   17.05  | 0.037 | Ia      | -4        | (1) 
ATLAS17mnc   | SN2017hnq     | 00 21 15.01 | -00 56 39.8 | 20171011   | ATLAS   |   18.96  | 0.108 | Ia-91T  | +18       |  
ATLAS17mfa   | SN2017hip     | 02 02 19.49 | -18 22 08.4 | 20170921   | ATLAS   |   19.33  | 0.065 | Ia      | +17       |   
ATLAS17mft   | SN2017hjb     | 03 25 18.55 | -21 49 06.4 | 20171011   | ATLAS   |   18.73  | 0.070 | Ia      | +7        |  
Gaia17cqd    | SN2017hkn     | 22 35 35.54 | -15 12 37.0 | 20171012   | Gaia    |   18.71  | 0.022 | IIP     | post-max  | (2)  
 

(1) Redshift from host galaxy.
(2) Further to ATel #10872, a deeper exposure of this object was acquired. The spectrum shows a highly reddened continuum, with broad H-alpha and Ca II features. Object is a likely IIP SN approximately a few months post-explosion