Classification certificate for object 2018jky
TNS Classification Report No. 3211 [ 2018TNSCR1885....1H ]

Date Received (UTC): 2018-12-07 00:09:28
Sender: Daichi Hiramatsu
Group: Global SN Project

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

Type: SN Ia
Redshift: 0.01458

Remarks: Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find good fits to several young Type Ia supernovae at the redshift of the host galaxy (z=0.01458; 1992CORV..C...0000F, via NED). The absolute B-band magnitude taken at 2018-12-06 05:39:08 is -16.7. We measure a Si II 6355 velocity of -15,000 km/s and a Ca II NIR triplet velocity of -23,000 km/s. The absolute magnitude and the broad features suggest this maybe as early as ~2 weeks before maximum.

The following Classification spectrum was provided:

Obsdate: 2018-12-06 11:55:26
Instrument: FLOYDS-S
Telescope: Faulkes Telescope South

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