PESSTO spectroscopic classification of optical transients

ATel #9980; A. Nyholm, F. Taddia, J. Sollerman, E. Karamehmetoglu, C. Barbarino (OKC), M. Fraser (UCD), Joe Anderson (ESO), C. Inserra, E. Kankare, K. Maguire, D. Young, K. W. Smith, S. J. Smartt (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron, I. Manulis (Weizmann), J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii) and A. Rest (STScI).
on 20 Jan 2017; 16:39 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cristina Barbarino (cristina.barbarino@astro.su.se)

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PESSTO, the 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 Dark Energy Survey Supernova Program (see Kessler et al. 2015, AJ, 150, 172 and http://portal.nersc.gov/des-sn/ ), by the ESA Gaia Photometric Science Alerts Team and DPAC ( http://gsaweb.ast.cam.ac.uk/alerts ) and 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 ). All observations were performed on the ESO New Technology Telescope at La Silla on 2017 January 19, 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 
DES16E1gfm  | SN2017lw  | 00:33:51.24  | -42:37:06.1 |  20170106  | DES    |  21.0    | 0.186  |  Ia  | At max       | 
Gaia17adz   | SN2017lb  | 10:12:49.86  | -18:06:45.8 |  20170110  | Gaia   |  18.4    | 0.053  |  Ia  | At max       | (1) 
Gaia17adx   | SN2017la  | 10:48:26.56  | -13:13:59.3 |  20170111  | Gaia   |  18.3    | 0.027  |  II  | > +20 d      | (2) 
ASASSN-17at | SN2017ln  | 11:38:33.78  | +25:23:46.8 |  20170119  | ASASSN |  16.7    | 0.025  |  Ia  | -10 to -8 d  | (3) 
Gaia17adw   | SN2017kz  | 13:07:25.41  | -01:19:23.4 |  20170112  | Gaia   |  18.7    | 0.087  |  Ia  | +8 to +10 d  |  

(1) Host redshift from 6dF galaxy survey. Also detected as ATLAS17ajh. ATLAS light curve showed 7 day rise to o = 17.7 along with blue SED from Gaia.
(2) Host redshift from 2MASS.
(3) Host redshift from SDSS.