PESSTO spectroscopic classification of optical transients

ATel #10020; C. Barbarino, F. Taddia, J. Sollerman, A. Nyholm, E. Karamehmetoglu (OKC), M. Dennefeld (IAP, UPMC), N. Elias-Rosa (INAF-OAPd), 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) and A. Rest (STScI).
on 28 Jan 2017; 16:14 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 ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680), the Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu ) and the IAU TNS list (see https://wis-tns.weizmann.ac.il/ ). The observations were performed on the ESO New Technology Telescope at La Silla on 2017 January 27, using EFOSC2 and Grism 13 (3985-9315A, 18A 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 
ATLAS17amw  | AT2017pm  | 07:48:39.01  | -10:49:34.6 |  20170126  | ATLAS  |  16.9    |   0    |  Stellar  |              |  (1) 
ATLAS17anj  | AT2017pv  | 09:37:40.24  | -28:59:47.6 |  20170126  | ATLAS  |  16.7    |   0    |  Stellar  |              |  (2) 
            | SN2017pp  | 12:44:41.02  | +10:20:41.3 |  20170126  | ISSP   |  17.1    | 0.030  |  Ia-91T   |  +8 to +10 d |  (3) 
PS17afa     | SN2017rt  | 11:43:29.26  | -16:47:37.2 |  20170110  | PS1    |  17.5    | 0.012  |     Ic    |  +8 to +10 d |  (4) 

(1) Blue spectrum with Hbeta, gamma and delta in absorption at z = 0. Black body temperature ~13000 K.
(2) Blue spectrum with Hbeta, gamma and delta in absorption at z = 0. Black body temperature ~12000 K.
(3) Also classified by NUTS (ATel #10019). Redshift from host in NED.
(4) Redshift from host in NED.