Classification certificate for object 2018fip
TNS Classification Report No. 2609 [ 2018TNSCR1249....1S ]

Date Received (UTC): 2018-08-27 23:14:17
Sender: Daniele Malesani
Group: STARGATE

J. Selsing (DAWN/NBI), L. Izzo (HETH/IAA-CSIC), A. Rossi (INAF/OAS), D. B. Malesani (DAWN/NBI and DARK/NBI) report/s a classification of object: SN 2018fip

Type: SN Ic-BL
Redshift: 0.117

Remarks: Optical afterglow of GRB 180728A (Starling et al., GCN 23046), initially discovered by Lipunov et al. (GCN 23048). Several spectra were acquired from our group, as described by Izzo et al. (GCN 23142), showing the emergence of a supernova from the GRB afterglow. The spectrum uploaded here shows a convincing match with the type-Ic SN 2002ap, thus allowing a robust classification of this SN as a broad-lined Type-Ic SN (Selsing et al., GCN 23181).

The following Classification spectrum was provided:

Obsdate: 2018-08-21 01:52:19
Instrument: X-Shooter
Telescope: The Very Large Telescope - UT2

Remarks: The uploaded spectrum has been smoothed compared to the relative X-shooter resolution.

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