Classification certificate for object 2017iuk
TNS Classification Report No. 1502 [ 2017TNSCR1387....1P ]

Date Received (UTC): 2017-12-08 05:04:38
Sender: Dr. Antonio de Ugarte Postigo
Group: HETH

Antonio de Ugarte Postigo (HETH/IAA-CSIC, DARK/NBI), Luca Izzo (HETH/IAA-CSIC), D.A. Kann (HETH/IAA-CSIC), C.C. Thoene (HETH/IAA report/s a classification of object: SN 2017iuk

Type: SN Ic-BL
Redshift: 0.0368

Remarks: The spectrum shows broad undulated spectral features, which are prominent between 4000 and 6000 Angstrom, superposed to the afterglow continuum, which indicates the emergence of a supernova component. The features include a double bump in this range, similar to what was seen for the very early spectra of SN 1998bw (Patat et al. 2001), implying that this is also a broad line Ic supernova.

The following Classification spectrum was provided:

Obsdate: 2017-12-07 06:05:00
Instrument: OSIRIS
Telescope: Gran Telescopio Canarias

Remarks: The spectrum was obtained using the R1000B grism, which covers the range from 3700 to 7880 A.

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2017iuk