ePESSTO spectroscopic classification of optical transients
ATel #12490; R. Carini (INAF-OAR), E. Palazzi (INAF-OAS Bologna), E. Cappellaro, A. Fiore, S. Benetti (INAF-OAPd), N. Elias-Rosa (ICE-CSIC), M. Gromadzki (Univ. Warsaw), C. Inserra (Univ. Cardiff), E. Kankare (Univ. Turku), 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 (QUB), O. McBrien, D. E. Wright (Univ. of Minnesota), K. C. Chambers, H. Flewelling, M. Huber, T. Lowe, E. Magnier, A. Schultz, C. Waters, R. J. Wainscoat, M. Willman (IfA, Univ. of Hawaii)
on 10 Feb 2019; 16:28 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Enrico Cappellaro (enrico.cappellaro@oapd.inaf.it)
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. The targets were supplied by the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and
Tonry et al. (ATel 8680), and by Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu ). Observations were performed on the ESO New Technology Telescope at La Silla on 2019-02-07, using EFOSC2 and Grism 13 (3685-9315, 21.2A 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
ATLAS19dga | SN2019ata | 10 14 10.79 | -35 09 39.0 | 20190209 | ATLAS | 18.571 | 0.030 | Ia | -10 | (1)
ATLAS19dfz | SN2019asz | 15 01 25.08 | +15 01 25.08| 20190204 | ATLAS | 18.104 | 0.025 | II | early | (2)
PS19nx | SN2019asm | 09 06 25.97 | +23 16 43.2 | 20190204 | PAN-STARRS1| 19.25 | 0.061 | II | max | (3)
ATLAS19cnp | SN2019amq | 10 38 35.24 | +06 35 07.5 | 20190204 | ATLAS | 19.599 | 0.054 | II | +6 | (4)
ATLAS19den | SN2019aqn | 15 33 36.04 | +01 23 35.8 | 20190208 | ATLAS | 18.713 | 0.038 | CC | max | (5)
ATLAS19del | SN2019aqm | 15 27 59.86 | +09 34 28.6 | 20190208 | ATLAS | 19.38 | 0.071 | Ia | -6 | (6)
ATLAS19dbz | SN2019aof | 12 32 12.80 | +24 29 58.2 | 20190205 | ATLAS | 18.444 | 0.073 | Ia | max | (7)
(1) The redshift of the host galaxy was retrieved from NED. The expansion velocity deduced by the SiII 635.5nm minimum is about 13000 km/s.
(2) The redshift of the host galaxy was retrieved from NED. The spectrum shows a blue continnum with narrow emission lines of HI and HeII 468.6nm. The best fit is with the type IIn SN 1998S 4 days after explosion (Leonard D. C. et. al. 2000, ApJ 536, 239)
(3) The redshift of the host galaxy was retrieved from NED. The spectrum shows a blue continuum and broad P-Cygni features identified with Hbeta and Hgamma (but not Halpha). The expansion velocity from the Hbeta mimimum is about 12000 km/s
(4) The redshift of the host galaxy was retrieved from NED. The spectrum is that of a standard type II with well developped Balmer P-Cygni features. The expansion velocity deduced from the Halpha minimum is about 11500 km/s.
(5) The redshift of the host galaxy was retrieved from NED. Blue featureless continuum matching very early type II SNe of different subtypes.
(6) The redshift was obtained from the snid spectral fit. The expansion velocity deduced by the Halpha minimum is about 10500 km/s.
(7) The redshift was obtained from the snid spectral fit. The expansion velocity deduced by the Halpha minimum is about 10000 km/s.
