ePESSTO spectroscopic classification of optical transients

ATel #11612; P. Clark, O. McBrien, K. Maguire, E. Kankare (QUB), M. T. Botticella (INAF-Capodimonte), M. Dennefeld (IAP, Paris), C. Frohmaier (Portsmouth), Z. Kostrzewa-Rutkowska (SRON/RU), G. Leloudas (DARK), C. Inserra (Southampton), S. J. Smartt (QUB), O. Yaron (Weizmann), D. R. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau., A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST) A. Rest (STScI), K. W. Smith, D. E. Wright (Univ. of Minnesota)
on 5 May 2018; 19:06 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Kate Maguire (kate.maguire@qub.ac.uk)

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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 Catalina Real-time Transient Survey (CRTS; Drake et al. 2009, ApJ, 696, 870 ; http://crts.caltech.edu/ ), and 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 2012 May 04, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). 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 
Gaia18bbr   | SN2018bdh | 10:52:38.31 | +22:13:43.5 | 20180428   | Gaia   | 18.81    | 0.079 | Ia   | +3d    | (1) 
	    | SN2018baf | 13:17:01.57 | -02:16:36.8 | 20180423   | CRTS   | 19.80    | 0.12  | Ia   | at max | 
ATLAS18ntu  | SN2018bbs | 13:34:04.69 | -20:53:14.4 | 20180417   | ATLAS  | 19.13    | 0.043 | Ia   | +20d   | (2) 
ATLAS18nts  | SN2018bbr | 14:03:19.86 | -22:33:07.1 | 20180421   | ATLAS  | 19.96    | 0.021 | II   | +6d    | (3)        
Gaia18baf   | SN2018bak | 10:24:48.04 | -02:30:35.6 | 20180412   | Gaia   | 18.98    | 0.088 | Ia   | +13d   | (4) 
ATLAS18mrg  | AT2018bbw | 13:03:14.72 | +07:48:08.0 | 20180110   | ATLAS  | 18.35    | 0.010 |  -   |   -    | (5) 

(1) Best SNID match is to SN Ia, SN 1992A at +3d.
(2) Best SNID match is to SN Ia, SN 1999ee at +20d.
(3) Best SNID match is to Type IIP SN 2004et at +6d.
(4) Best SNID match is to SN Ia, SN 1996X at +13d.
(5) Spectrum is dominated by host galaxy light.