PESSTO spectroscopic classification of optical transients

ATel #10056; A. Nyholm, F. Taddia, C. Barbarino, J. Sollerman (OKC), T-W Chen (MPE), L. Galbany (Pitt), C. Inserra, E. Kankare, K. Maguire, D. Young, K. W. Smith, S. J. Smartt, D. Wright (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron, I. Manulis (Weizmann), J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland, K. Chambers, H. Flewelling, M. Huber, E. Magnier, C. Waters, R. J. Wainscoat (IfA, Univ. of Hawaii), A. Rest (STScI), N. Elias-Rosa, A. Pastorello (INAF-OAPd) and M. Fraser (UCD).
on 7 Feb 2017; 16:44 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. The targets were supplied by the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680), by the ESA Gaia Photometric Science Alerts Team and DPAC ( http://gsaweb.ast.cam.ac.uk/alerts ) and by the Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu ). The observations were performed on the ESO New Technology Telescope at La Silla on 2017 February 6, using EFOSC2 and Grism 13 (3985-9315Å, 18Å resolution). Classification was done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). Classification spectrum 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 
PS17ajt     | SN2017aac | 08:10:30.93  | +05:15:37.1 |  20170129  | PS1    |  18.9    |  0.03  |   Ia    |    At max    |   
PS17aio     | SN2017vp  | 09:02:35.11  | +09:45:11.5 |  20170126  | PS1    |  19.8    |  0.05  |   II    |    > +20 d   |   
ATLAS17avq  | SN2017abw | 09:39:27.20  | -29:29:23.3 |  20170126  | ATLAS  |  19.2    |  0.08  |   II?   |       ?      |  (1)  
ATLAS17axb  | SN2017adj | 13:43:23.25  | -19:56:37.1 |  20170130  | ATLAS  |  18.2    |  0.03  |   Ia    | -7 to -4 d   | 
PS17akj     | SN2017aaa | 13:49:49.15  | -03:04:48.0 |  20170130  | PS1    |  19.9    |  0.047 |   Ia    | -7 to -4 d   |  (2) 
Gaia17ahc   | SN2017acb | 15:50:37.63  | -58:44:00.6 |  20170127  | Gaia   |  17.0    |  0.02  |   Ia    |    > +20 d   |  (3) 

(1) Blue continuum. Likely a young core-collapse SN. Redshift estimated from emission line observed at 7120 Å, here assumed to be host H alpha.
(2) Redshift of host from the SDSS.
(3) At galactic latitude -3.6 degrees. SN reddened by the Milky Way.