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PESSTO spectroscopic classification of optical transients

ATel #9873; K. W. Smith (QUB), A. Cikota (ESO), M. Magee (QUB), C. Inserra (QUB), M. Dennefeld (IAP, UPMC), M. Fraser (UCD), E. Kankare (QUB), K. Maguire (QUB), S. J. Smartt (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), D. Wright (QUB), K. Chambers, H. Flewelling, M. Huber, E. Magnier, J. Tonry, C. Waters, R. J. Wainscoat (IfA, Univ. Hawaii), B. Stalder, L. Denneau, A. Heinze, A. Sherstyuk (IfA, Univ. of Hawaii), A. Rest (STScI)
on 18 Dec 2016; 16:52 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cosimo Inserra (c.inserra@qub.ac.uk)

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 Pan-STARRS Survey for Transients (see Huber et al., ATel #7153), ATLAS survey, see Tonry et al. (2011, PASP, 123, 58), and from the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts). All observations were performed on the ESO New Technology Telescope at La Silla on 2016 12 17, 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 
ATLAS16dxm  | SN2016ile     | 04 02 15.46 | -32 58 55.3 | 20161105   | ATLAS  |   20.13  | 0.065 | Ia        | +26   | (1) 
PS16fgc     | AT2016ind     | 06 57 06.34 | -31 59 27.5 | 20161019   |  PS1   |   18.85  | 0.000 | Stellar   | -     | (2) 
ATLAS16dzg  | SN2016ivt     | 11 35 01.74 | +08 28 25.5 | 20161214   | ATLAS  |   16.46  | 0.029 | Ia        | -6    | (3) 
Gaia16ccr   | SN2016iwk     | 11 37 18.69 | +01 20 23.8 | 20161215   | Gaia   |   17.56  | 0.053 | Ia        | +7    | (4) 

(1) Also known as Gaia16byg. SNID provides good matches to both normal and 91T-like SNe Ia approximately one month post-maximum. (2) Hydrogen Balmer series and He I visible at zero redshift. Probable nova or CV. Point source stellar source in Pan-STARRS1 i-band and DSS reference frames. (3) Also known as Gaia16ccs. SNID provides good matches to normal SNe Ia shortly before maximum. (4) SNID provides good matches to normal SNe Ia approximately one week post-maximum.