Classification certificate for object 2018bwq
TNS Classification Report No. 2060 [ 2018TNSCR.700....1L ]

Date Received (UTC): 2018-05-23 08:44:20
Sender: Dr. Lluís Galbany
Group: None

Angel R. Lopez-Sanchez (AAO/Macquarie U.), Lluis Galbany (U. Pittsburgh), Yago Ascasibar (UAM), Kristin Fiegert (AAO) report/s a classification of object: SN 2018bwq

Type: SN Ia
Redshift: 0.084

Remarks: Classification was done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), and the spectrum is available at the IAU Transient Name Server (see The spectrum shows the Si II 6355A absorption, and MgII, and FeII absorption features characteristic of type Ia supernovae (SNe Ia). SNID gives a reasonable fit to all its main spectral features with spectra of normal and 91T-like SNe Ia a few days before peak brightness placed at redshift ~0.08, consistently with that of the host galaxy (0.084). We measure a Si II 6355 velocity of -9,500 km/s.

The following Classification spectrum was provided:

Obsdate: 2018-05-11 18:30:00
Instrument: Other
Telescope: Other

Remarks: Observations were performed on the 4m Anglo-Australian Telescope at Siding Spring Observatory on 2018 May 22 18:20 UT, using Koala+AAOmega and Grisms 580V+385R (3700-5700A and 6100-9300A).

Details of the object and its spectra can be viewed here: