SOAR telescope spectroscopic classification of optical transients
ATel #12154; R. Cartier, C. E. Martinez-Vazquez, P. Ugarte (CTIO), P. Martin (ULS)
on 1 Nov 2018; 23:39 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Regis Cartier (rgcartier@gmail.com)
Subjects: Optical, Supernovae
We report the supernova classification of AT2018hpu. The target was reported 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 ) on the ATel #12149. The observations were performed on the night of 2018-10-31 at the 4.1m SOAR Telescope equipped with the Goodman High Throughput Spectrograph using the 400 lines/mm grating, and a slit width of 1.0 arc second, resulting in a spectral coverage from 380-775 nm with a resolution of 0.636 nm. The classifications was done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Survey Name | IAU Name | RA (J2000) | Dec (J2000) | Disc. Date | Source | Disc Mag | z | Type | Phase | Notes
ASASSN-18yn | SN2018hpu | 03:18:21.28 | -41:36:34.8 | 2018-10-19 | ASAS-SN | 18.2 | 0.066 | Ia | at max | (1,2,3)
(1) Redshift obtained using a strong Na D absorption line from the host galaxy, the value reported here it is consistent with the value reported by Hiramatsu et al. on TNS.
(2) From the Si II λ 6355 line we measure a expansion velocity of 14057 km/s.
(3) Good match to SN2003ic at +3 d.
