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ePESSTO spectroscopic classification of optical transients

ATel #10328; R. Cartier, C. P. Gutierrez, M. Smith, C. Inserra (Southampton), J. Lyman (Warwick), 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), D. Wright (QUB), K. C. Chambers, H. Flewelling, M. Huber, T. Lowe. E. Magnier, A. Schulz, C. Waters, R. J. Wainscoat, M. Wilman (IfA, Univ. Hawaii)
on 28 Apr 2017; 17:18 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mathew Smith (matsmith2@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 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 ), the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680), Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu ) and the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts). All observations were performed on the ESO New Technology Telescope at La Silla on 2017 April 27, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). The classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). The 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-17fk | SN2017dhr |00:23:07.14|-16:47:00.2 | 20170420 | ASAS-SN |   16.4    | 0.007 |     Ia     |  at max   | (1) 
ATLAS17eum  | SN2017dik |09:57:53.99|-10:38:31.5 | 20170416 | ATLAS   |   18.8    | 0.050 |     Ia     |  at max   | 
PS17clr     | SN2017dhd |11:23:19.51|+05:47:59.6 | 20170422 | PS1     |   19.8    | 0.067 |     Ia     |  at max   | (2) 
ATLAS17euc  | SN2017dib |12:49:01.51|+05:49:37.6 | 20170328 | ATLAS   |   19.3    | 0.059 |     Ia     |  at max   | 
            | AT2017dii |13:13:57.38|-31:41:32.6 | 20170425 |         |   16.6    | 0.000 |   G-star   |           | 
ATLAS17evn  | SN2017dip |13:52:48.20|+12:02:22.8 | 20170425 | ATLAS   |   18.3    | 0.079 |     Ia     |+ 4 to  +7d| 
PS17cln     | AT2017dha |16:07:23.71|+10:25:40.1 | 20170420 | PS1     |   20.6    | 0.017 |LBV/imposter|           | (3,4) 
Gaia17bcd   | SN2017dhw |19:03:46.17|-42:46:12.3 | 20170423 | Gaia    |   18.5    | 0.049 |     Ia     |+11 to +20d| 
 
(1) Highly reddened SN. The spectrum shows strong Na I absorption lines at the redshift of the host.  
(2) We acknowledge the contribution of Zooniverse Citizen Scientists 'Jose_Campos', 'Astro_Denny' and 'nilium'. 
(3) Narrow emission lines at the redshift of the host galaxy. This object is offset 21" from UGC 10213 at a distance of 70Mpc, with M_r ~ -14 
(4) We acknowledge the contribution of Zooniverse Citizen Scientists 'peterfoele', 'nilium' and 'romist'.