Classification certificate for object 2018aaz
TNS Classification Report No. 1765 [ 2018TNSCR.313....1H ]

Date Received (UTC): 2018-03-07 19:22:44
Sender: Dr. Griffin Hosseinzadeh
Group: Global SN Project

Griffin Hosseinzadeh, Daichi Hiramatsu, Iair Arcavi, Jamison Burke, D. Andrew Howell, Curtis McCully, Stefano Valenti report/s a classification of object: SN 2018aaz

Type: SN Ia-91bg-like
Redshift: 0.023

Remarks: Using Superfit (Howell et al. 2005, ApJ, 634, 1190), we find a good fit to SN 1991bg at maximum light at the redshift of the proposed host galaxy (z=0.023; Mahdavi & Geller 2004, ApJ, 607, 202 via NED). However, the higher velocities of the observed spectrum and the relatively faint discovery magnitude (M=-16.6 mag) suggest it is before maximum light.

The following Classification spectrum was provided:

Obsdate: 2018-03-07 10:36:32
Instrument: FLOYDS-N
Telescope: Faulkes Telescope North

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2018aaz