ePESSTO spectroscopic classification of optical transients
ATel #11299; K. W. Smith (QUB), J. Palmerio (IAP), D. O'Neill (QUB), C. Barbarino (Stockholm), M. Fraser (UCD), Z. Kostrzewa-Rutkowska (SRON/RU), G. Leloudas (DARK), A. Pastorello (Padova), C. Inserra (Southampton), E. Kankare (QUB), K. Maguire (QUB), S. J. Smartt (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann)
on 14 Feb 2018; 17:17 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Erkki Kankare (firstname.lastname@example.org)
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 are are from 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 Feb 13, 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
ASASSN-18cc | SN2018qp | 14 14 32.28 | +03 11 24.32 | 20180209 | ASAS-SN | 16.3 | 0.030 | Ia | +4d to +7d |
ASASSN-18cd | AT2018qq | 09 58 33.03 | -27 49 50.09 | 20180210 | ASAS-SN | 17.0 | 0.000 | Stellar | - | (1)
(1) We see the transient source in ATLAS, but we measure its position as coincident with PSO J095832.834-274951.126 a Pan-STARRS (r=19.6) and Gaia stellar object. The spectrum is blue and mostly featureless with weak H-alpha and H-beta features, hence this is likely a CV.