ePESSTO spectroscopic classification of optical transients
ATel #12422; R. Carini (INAF-OAR),, S. Piranomonte (INAF-OAR), A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB), S. Benetti (INAF-OAPd), F. Onori (IAPS Roma), M. T. Botticella (INAF-Capodimonte), E. Brocato (INAF-OAAb), L. Galbany (Pitt), C. Inserra (Cardiff), E. Kankare (Turku), 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 (QUB), D. E. Wright (Univ. of Minnesota)
on 25 Jan 2019; 16:09 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Paolo D'Avanzo (paolo.davanzo@brera.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 classification. The target was supplied by the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Smith et al. (ATel #12419). The observation was performed on the ESO New Technology Telescope at La Silla on 2019 Jan 25, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). The classification was done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383). 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
ATLAS19bvw | SN2019aax | 12 17 05.63 | -26 37 44.9 | 20190120 | ATLAS | 18.6 | 0.013 | II | at max | (1)
(1) Mostly consistent with type IIb around maximum, although normal type II are not totally excluded. The expansion velocity deduced from the H-alpha minimum is about 13300 km/s. Redshift from host galaxy (see ATel #12419).
