Classification certificate for object 2020qef
TNS Classification Report No. 7372 [ 2020TNSCR2618....1T ]

Date Received (UTC): 2020-08-26 18:31:12
Sender: Dr. Giacomo Terreran
Group: None

Giacomo Terreran report/s a classification of object: SN 2020qef

Type: SLSN-I
Redshift: 0.183

Remarks: The spectrum shows similarities with the SLSN-I 2010md, which Yan et al. (2020; arXiv:2006.13758) classified as a SLSN-Ib, due the presence of broad He I absorption. Similar features are also present in SN 2020qef. From the minimum of the absorption feature of He I 5876 we infer a velocity of ~9500 km/s of the bulk material.

The following Classification spectrum was provided:

Obsdate: 2020-08-24 09:23:36
Instrument: BINOSPEC
Telescope: MMT Observatory 6.5m

Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2020qef