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 https://wis-tns.weizmann.ac.il/). 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: https://wis-tns.weizmann.ac.il/object/2018bwq