ePESSTO spectroscopic classification of optical transients
ATel #12303; M. Pursiainen, N. Castro-Segura, M. Smith (Southampton), M. Dennefeld (IAP, Paris), M. Gromadzki (Warsaw University Astronomical Observatory), C. Angus (Southampton), D. Bersier (LJMU), C. Frohmaier (ICG), A. Gal-Yam (Weizmann), T. Wevers (Cambridge), S. C. Williams (Lancaster), P. Wiseman (Southampton), C. Inserra (Cardiff), E. Kankare, K. Maguire, S. J. Smartt (QUB), O. Yaron (Weizmann), D. R. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau., A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith, O. McBrien (QUB), D. E. Wright (Univ. of Minnesota)
on 17 Dec 2018; 17:13 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mathew Smith (matsmith2@gmail.com)
Subjects: Optical, Supernovae
ePESSTO, the extended 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 ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680), and the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014, ApJ, 788, 48 and http://www.astronomy.ohio-state.edu/~assassin/index.shtml ). All observations were performed on the ESO New Technology Telescope at La Silla on 2018 Dec 16, 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
ATLAS18bbtc | SN2018jsn | 11 59 56.98 | -00 33 01.3 | 20181210 | ATLAS | 18.07 | 0.022 | SNII | > +20 |
ASASSN-18abp | AT2018jsw | 08 36 57.50 | -22 05 14.7 | 20181211 | ASASSN | 16.56 | 0.0 | Dwarf nova | | a.
ASASSN-18abr | SN2018jwi | 06 18 39.28 | -54 28 14.8 | 20181214 | ASASSN | 17.10 | 0.017 | SNIa | -7 to -4 |
a. Also detected by ATLAS as ATLAS18bbtn and Gaia as Gaia18dva. Spectrum is of a black-body with narrow absorption lines corresponding to the Balmer series and possible absorption due to HeI at 4471.
