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PESSTO spectroscopic classification of optical transients

ATel #8935; M. Magee (QUB), I. Bar, J. Johansson, P. M. Vreeswijk (Weizmann), C. Inserra, E. Kankare, K. Maguire, S. J. Smartt, K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), T. -W. Chen (MPE), M. Fraser (Cambridge), M. Childress (Southampton), R. Scalzo, F. Yuan, B. Tucker, B. Schmidt (Australian National University)
on 11 Apr 2016; 15:21 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Paul Vreeswijk (paul.vreeswijk@weizmann.ac.il)

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 SkyMapper survey (see Scalzo et al. ATel #5480) and 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 2016 04 10, 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.

 
Name      | RA (J2000)  | Dec (J2000) | Disc. Date | Disc. Source | Disc Mag |  z      | Type  | Phase    | Notes
SMT16alz | 05 52 04.95 | -34 09 29.9 | 20160331 | SkyMapper | 21.27 | 0.07 | SN Ia | at max | 1 SMT16akv | 09 52 51.20 | -11 22 20.0 | 20160403 | SkyMapper | 18.46 | 0.025 | SN II | at max | 2 SN2016blz | 15 40 29.23 | +00 54 36.3 | 20160410 | ASAS-SN | 16.30 | 0.012 | SN II | pre max | 3 SMT16aec | 13 28 47 | -27 39 04.5 | 20160402 | SkyMapper | 19.37 | 0.04 | SN Ic | post max | 4

(1) Discovered by SkyMapper with ID SMT16alz. Best fit with several type Ia around maximum light at z=0.07.

(2) Discovered by SkyMapper with ID SMT16akv. Best fit with several type IIP around maximum light at z=0.03. The redshift z=0.025 is determined from the host-galaxy Halpha and [OIII] 5007 emission lines.

(3) Discovered by ASAS-SN with ID ASASSN-16eh. Blue continuum with Halpha, Hbeta and He II 4686 emission lines, suggesting a young type II.

(4) Discovered by SkyMapper with ID SMT16aec. Best fit with type Ic SN2004aw several days post max at z=0.04.