ePESSTO spectroscopic classification of optical transients
ATel #11916; F. Onori (SRON/RU), R. Stein (Hu Berlin/DESY), G. Cannizzaro (SRON/RU), N. Elias-Rosa (IEEC, ICE-CSIC), M. Gromadzki (Warsaw), C. Inserra (Southampton), E. Kankare (QUB), K. Maguire (QUB), 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, D. E. Wright (Univ. of Minnesota)
on 5 Aug 2018; 20:17 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Francesca Onori (f.onori@sron.nl)
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), by 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 ), by the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts), by the PMO-Tsinghua Transient Survey (PTSS; http://www.cneost.org/ptss2/index.php ) and by the Zwicky Transient Facility (see ATel #11266). All observations were performed on the ESO New Technology Telescope
at La Silla on 2018 August 02, 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
SN2018dfg | SN2018dfg | 14 06 34.69 | -05 27 02.9 | 20180505 | BOSS | 17.80 | 0.009 | II | >+20d |
PTSS-18fqd | SN2018dht | 20 55 19.05 | +00 32 19.1 | 20180711 | PTSS | 18.29 | 0.02 | II | +11 to +20| (1)
ATLAS18sea | SN2018dza | 14 49 17.97 | -30 17 22.3 | 20180712 | ATLAS | 18.42 | 0.02 | II | +8 to +10 |
ATLAS18slo | SN2018ecd | 13 19 36.73 | -29 07 16.6 | 20180612 | ATLAS | 16.37 | 0.05 | Ia | at max |
ATLAS18sok | SN2018edd | 14 53 32.29 | +03 04 13.9 | 20180721 | ATLAS | 18.24 | 0.03 | Ia | +4 to +7 |
ATLAS18src | SN2018eev | 02 09 03.65 | -08 46 11.5 | 20180724 | ATLAS | 18.58 | 0.06 | II | at max |
ATLAS18sto | AT2018elp | 14 31 19.12 | +21 17 24.8 | 20180728 | ATLAS | 18.33 | 0.03 | ? | | (1)(2)
Gaia18byg | SN2018emo | 01 05 38.11 | +29 29 50.8 | 20180730 | Gaia | 18.78 | 0.067 | Ia | >+20d |
ATLAS18swa | SN2018enc | 15 19 28.63 | -09 52 50.0 | 20180729 | ATLAS | 18.77 | 0.017 | Ia | -7 to -4 |
ATLAS18swr | SN2018eod | 20 53 19.66 | -33 25 24.8 | 20180801 | ATLAS | 18.29 | 0.054 | Ia | at max |
ATLAS18sxj | AT2018eoo | 22 02 17.11 | +28 29 07.6 | 20180730 | ATLAS | 17.77 | 0.0 | variable star | | (3)
Gaia18bzh | SN2018eov | 16 15 17.41 | -61 07 53.5 | 20180802 | Gaia | 16.03 | 0.016 | Ia | -7 to -4 |
ATLAS18sxt | AT2018epa | 21 51 16.87 | -14 27 36.2 | 20180803 | ATLAS | 18.91 | 0.05 | ? | ? | (5)
ASASSN-18qv | AT2018eph | 04 55 50.11 | -61 45 24.8 | 20180804 | ASASSN | 16.70 | 0.03 | II | ? | (4)
PTSS-18hdi | SN2018eog | 20 28 11.96 | -03 08 13.4 | 20180802 | PTSS | 17.80 | 0.015 | II | at max | (6)
ATLAS18swu | SN2018enb | 21 39 34.57 | +08 52 47.3 | 20180713 | ATLAS | 18.48 | 0.023 | Ia | at max | (6)
ZTF18abjsrdz | AT2018ene | 20 07 48.30 | +13 17 11.2 | 20180724 | ZTF | 17.53 | ? | ? | ? | (7)
(1) Redshift from host galaxy.
(2) Blue, featureless continuum.
(3) Stellar absorption lines (H Balmer, Ca II, Mg) at z=0.
(4) Balmer emission lines and potential flash-ionisation lines on top of a blue continuum. Likely a young Type II.
(5) Galactic features at z~0.05.
(6) Already classified in ATel #11914.
(7) No template match at host phot. redshift of z=0.265.
