Classification certificate for object 2018kpo
TNS Classification Report No. 3313 [ 2018TNSCR1985....1P ]

Date Received (UTC): 2018-12-26 23:43:03
Sender: Stephen Smartt
Group: None

Simon Prentice (QUB), Stephen Smartt (QUB), Kate Maguire (QUB) report/s a classification of object: SN 2018kpo

Type: SN II
Redshift: 0.017

Remarks: Spectrum taken with SPRAT on the Liverpool Telescope 2018-12-25 21:06:40 UT. Broad, shallow emission line with a peak at 6638 Angs. If we assume this transient is at the host redshift of v=5248 km/s or z=0.017505, then this is likely to be H-alpha but is blue shifted from rest by 1700 km/s. This is often observed in early type II spectra (Anderson et al. 2014,MNRAS,441,671). The width of the line is 13,000 km/s and the blackbody temperature is around 12000K. This is very likely a young type II SN.

The following Classification spectrum was provided:

Obsdate: 2018-12-25 00:00:00
Instrument: SPRAT
Telescope: Liverpool Telescope

Remarks: Preliminary reduction

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