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PESSTO spectroscopic classification of optical transients

ATel #10144; A. Nyholm, C. Barbarino, F. Taddia, C. Fremling, J. Sollerman (OKC), J. Anderson (ESO), L. Galbany (Pitt), C. Inserra, E. Kankare, K. Maguire, S. J. Smartt, K. W. Smith, D. Young (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron, I. Manulis, (Weizmann), J. Tonry, B. Stalder, L. Denneau., A. Heinze, H. Weiland (IfA, Univ. of Hawaii), A. Rest (STScI)
on 6 Mar 2017; 15:28 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Francesco Taddia (ftadd@astro.su.se)

Subjects: Optical, Supernovae, Transient

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). The observations were performed on the ESO New Technology Telescope at La Silla on 2017 March 5, using EFOSC2, Grism 13 (3985-9315A, 18A resolution) and Grism 11 (3380-7520A, 13A resolution). The classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383). The 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 
ATLAS17bds                    | SN2017bel | 08 56 46.74 | +29 55 15.5 |  20170217  | ATLAS  |  18.4    | 0.033   | II   | +11 d | (1) 
ATLAS17bax                    | SN2017aww | 08 37 38.22 | +19 24 13.9 |  20170217  | ATLAS  |  18.2    | 0.0416  | II   | ?     | (2) 

(1) Best match to SN 1980K at +11 d. Redshift from SDSS. See ATel #10131 for previous observations.

(2) Hbeta, Hgamma and Hdelta P-Cygni profiles emerging from the blue continuum. Redshift from galaxy emission lines. See ATel #10094 for previous observations.