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PESSTO spectroscopic classification of optical transients

ATel #9968; F. Taddia, J. Sollerman, C. Barbarino, E. Karamehmetoglu, A. Nyholm (OKC), M. Fraser (UCD), Joe Anderson (ESO), C. Inserra, E. Kankare, K. Maguire, K. W. Smith, D. Young, S. J. Smartt (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), I. Manulis, O. Yaron (Weizmann), J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii) and A. Rest (STScI).
on 17 Jan 2017; 16:32 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cristina Barbarino (cristina.barbarino@astro.su.se)

Subjects: Optical, Supernovae

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 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 ) 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 2017 January 16, 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 
ATLAS17abx  |           | 10:33:19.75  | -08:36:03.7 |  20170103  | ATLAS  | 18.8     | 0.065  | Ia     | +8 to +10 d  | (1) 
ASASSN-17aj | SN2017hm  | 11:33:10.57  | -10:13:18.4 |  20170109  | ASASSN | 16.9     | 0.021  | Ia     | -7 to -4  d  | (2) 
ATLAS17adf  |           | 11:44:28.23  | +16:33:29.8 |  20161223  | ATLAS  | 17.9     | 0.011  | Galaxy |              | (3) 
ASASSN-17ai | SN2017hl  | 12:07:18.82  | +16:50:26.0 |  20170109  | ASASSN | 19.1     | 0.023  | Ib     | At max       | (4) 

(1) Redshift of host from 6dF galaxy survey DR3.
(2) Also known as ATLAS17agj. Redshift of host from LEDA.
(3) No transient signature. Redshift from NED.
(4) Flagged by ATLAS on 20170105 as ATLAS17acf. Reddened spectrum, SN close to centre of host. Redshift of host from SDSS.