PESSTO spectroscopic classification of optical transients

ATel #8694; G. Terreran (QUB, INAF Padova), S. Taubenberger, T. Faran (ESO), M. Kromer (Stockholm University), M. T. Botticella (INAF - Capodimonte), T.-W. Chen (MPE), C. Inserra, E. Kankare, K. Maguire, S. J. Smartt, K. W. Smith, D. Young, D. Wright (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), I. Manulis, O. Yaron (Weizmann), L. Wyrzykowski (Warsaw Observatory), K. Chambers, H. Flewelling, M. Huber, E. Magnier, J. Tonry, C. Waters, R. J. Wainscoat (IfA, Univ. Hawaii)
on 14 Feb 2016; 21:48 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stefan Taubenberger (tauben@mpa-garching.mpg.de)

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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 All Sky Automated Survey for SuperNovae (ASAS-SN, http://www.astronomy.ohio-state.edu/~assassin/index.shtml ), Gaia (http://www.gaia.ac.uk/selected-gaia-science-alerts) and the Xingming Observatory Sky Survey (XOSS, http://www.xjltp.com/xo/index-en.htm ). All observations were performed on the ESO New Technology Telescope at La Silla on 2016 February 13th, 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 can be obtained from http://www.pessto.org (via WISeREP) and the Transient Name Server.

 
  
Name       | RA (J2000)  | Dec (J2000) | Disc. Date | Disc. Source |Disc. Mag|   z   |  Type        |  Phase                  | Notes
 
 
SN2016adk  | 11:42:26.68 | -36:54:23.4 | 2016-02-08 | ASAS-SN      |  17.3   | 0.030 |SNIa          |  few days after max     | a  
Gaia16acw  | 13:22:16.69 | -36:05:46.4 | 2016-02-08 | Gaia         |  18.7   | ---   |star          |  ---                    | b  
SN2016aew  | 14:11:26.49 | +01:17:09.4 | 2016-02-12 | ASAS-SN      |  17.3   | 0.025 |SNIa          |  ~max                   | c  
SN2016aex  | 15:45:30.31 | -13:09:10.0 | 2016-02-12 | ASAS-SN      |  16.8   | 0.029 |SNIa          |  few days before max    | d  
SN2016afa  | 15:36:32.47 | +16:36:36.6 | 2016-02-12 | XOSS         |  17.1   | 0.007 |SNII          |  1 week after explosion | e 

a) Discovered originally as ASASSN-16bl.
b) Probably G or K type star.
c) Discovered originally as ASASSN-16bq.
d) Discovered originally as ASASSN-16br. Possibly 99aa-like SN Ia.
e) Young, reddened SN II. Expansion velocities of ~17000 km/s (from Halpha absorption).