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ePESSTO spectroscopic classification of optical transients

ATel #10331; C. P. Gutierrez, R. Cartier, M. Smith, C. Frohmaier (Southampton), J. Lyman (Warwick), 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), 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), A. Moller, B. Tucker, B. Zhang, B. Schmidt (Australian National University)
on 29 Apr 2017; 17:39 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mathew Smith (matsmith2@gmail.com)

Subjects: Optical, Supernovae

Referred to by ATel #: 10344, 10510

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 ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts), 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 SkyMapper, see Scalzo et al. (ATel #5480). All observations were performed on the ESO New Technology Telescope at La Silla on 2017 April 28, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were performed 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  
Gaia17bcb   | SN2017dhu |06 15 31.93 |+06 27 46.3 | 20170423 | Gaia    |   18.5    | 0.043 |  II   |  at max   | (1) 
ATLAS17etw  | AT2017dht |09 27 06.82 |+12 42 03.5 | 20170422 | ATLAS   |   18.8    |       |       |           | (2) 
ATLAS17eut  | SN2017dil |09 43 42.25 |+22 47 43.8 | 20170426 | ATLAS   |   18.7    | 0.064 |  Ia   |  at max   | 
PS17clf     | SN2017dhm |11 06 49.86 |+14 29 16.0 | 20170420 | PS1     |   18.5    | 0.052 |  Ia   |+11 to +20d| (3,4) 
PS17clj     | SN2017dhp |11 54 14.38 |+11 45 40.5 | 20170420 | PS1     |   19.5    | 0.052 |  Ia   | -7 to -4d | (5) 
PS17cll     | SN2017dgy |12 54 16.25 |-06 12 38:0 | 20170420 | PS1     |   19.3    | 0.074 |  Ib   | +8 to +10d| (6) 
ATLAS17eug  | AT2017dic |13 20 27.31 |-12 07 20.3 | 20170425 | ATLAS   |   19.1    |       |       |           | (7) 
SMT17hbo    | SN2017dij |13 27 23.01 |-02 48 20.0 | 20170421 |SkyMapper|   18.9    | 0.096 |  Ia   | +8 to +10d| 
Gaia17bcu   | AT2017djj |17 46 11.80 |-25 37 18.1 | 20170425 | Gaia    |   19.1    |       |       |           | (8) 
Gaia17bbw   | SN2017dgu |21 24 02.17 |-53 33 55.1 | 20170422 | Gaia    |   18.9    | 0.062 |  Ia   |  at max   |  
 
(1) Similar to SN 2005cs at maximum, corresponding to ~6 days from explosion. 
(2) Blue continuum. 
(3) At the same redshift of the host galaxy. The SN shows slightly narrow features compared with a normal SN Ia. 
(4) We acknowledge the contribution of Zooniverse Citizen Scientists 'LonMcGregor', 'Jose_Campos' and 'MingMing'. 
(5) We acknowledge the contribution of Zooniverse Citizen Scientists 'peterfoele', 'Pinadva' and 'BLGoodwin'. 
(6) Redshift obtained from host galaxy emission lines. 
(7) Transient not visible on a deep acquisition	image, the transient is now below the discovery magnitude. 
(8) No clear object at the reported transient position, possibly a galactic transient that faded.