Classification certificate for object 2018gep
TNS Classification Report No. 2804 [ 2018TNSCR1442....1B ]

Date Received (UTC): 2018-09-24 17:01:37
Sender: Jamison Burke
Group: Global SN Project

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

Type: SN Ic-BL
Redshift: 0.032

Remarks: Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find multiple fits to Ic-BL around maximum light. We measure the ejecta velocity to be roughly 24,000 km/s, consistent across features of CaII, MgII, FeII, SiII, and OI. This value is high even for a Ic-BL, but within the parameter space of previous samples (Modjaz et al. 2016, ApJ, 832, 108). We measure the redshift to be 0.032 based on narrow host galaxy hydrogen lines.

The following Classification spectrum was provided:

Obsdate: 2018-09-19 05:42:17
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/2018gep