Classification certificate for object 2018cox
TNS Classification Report No. 2161 [ 2018TNSCR.860....1P ]

Date Received (UTC): 2018-06-20 12:42:17
Sender: Dr. Simon Prentice
Group: None

S. J. Prentice, P. Clark (QUB) report/s a classification of object: SN 2018cox

Type: SN I
Redshift: 0.093

Remarks: Spectrum shows prominent galaxy lines and a SN-like continuum underneath. Classification with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) favours SNe Ia, this is also favoured by the peak absolute magnitude of the object at approximately -19.5 mag, however the nature of the SI II feature around 6000 A is unclear and is likely contaminated by host-galaxy emission lines. Consequently this introduces some ambiguity so we classify this object as a type I SN despite the likelihood that it is a SN Ia.

The following Classification spectrum was provided:

Obsdate: 2018-06-18 23:01:24
Instrument: SPRAT
Telescope: Liverpool Telescope

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