WiFeS Spectroscopic Classification of Four Optical Transients as Type Ia Supernovae at median redshift of 0.055
ATel #13126; Syed Uddin (Observatories of the Carnegie Institution for Science), Jeremy Mould (Swinburne University of Technology), Lifan Wang (Purple Mountain Observatory and TAMU), Harrison Abbot (Australian National University), Brad Tucker (Mt Stromlo Observatory), Ju-Jia Zhang (Yunnan Observatories)
on 24 Sep 2019; 20:36 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Syed Uddin (saushuvo@gmail.com)
Subjects: Optical, Supernovae, Transient
On September 23, 2019, we obtained spectra of four optical transients with the Wide Field Spectrograph (WiFeS - Dopita et al., 2007, ApSS, 310, 255) on board 2.3m ANU telescope at Siding Spring Observatory. We classify them as Type Ia Supernovae by cross-correlating with a library of supernova spectra using the SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and with a private spectral identification code. Details are below. We request photometric follow-ups.
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Disc. Mag
ASASSN-19xa | AT2019qmj | 03:22:46.22 | -54:13:40.08 | 0.05 | Ia | -3 | 17.2 |
ASASSN-19xb | AT2019qqh | 02:38:57.86 | -53:20:55.18 | 0.05 | Ia | -3 | 17.9 |
ASASSN-19xc | AT2019qqi | 21:09:03.63 | -42:35:52.55 | 0.06 | Ia | 0.6 | 17.9 |
Gaia19efe | AT2019qrq | 01:53:52.70 | -46:13:45.88 | 0.08 | Ia | -5 | 18.5 |
