Classification certificate for object 2019daj
TNS Classification Report No. 3892 [ 2019TNSCR.596....1B ]

Date Received (UTC): 2019-04-18 00:33:01
Sender: Jamison Burke
Group: Global SN Project

Jamison Burke, Iair Arcavi, D. Andrew Howell, Daichi Hiramatsu, Curtis McCully, Stefano Valenti report/s a classification of object: SN 2019daj

Type: SN Ia
Redshift: 0.038

Remarks: Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find good fits to several Type Ia supernovae two to three weeks after maximum. The best-fit redshift from both SNID and Superfit is 0.038. Verification of this redshift is difficult as there is no obvious host galaxy, either in images of the SN or in contaminating spectral lines, but the phase and distance modulus are in agreement with the ATLAS lightcurve. We measure a Si II velocity of about 10,000 km/s and a Ca II velocity of about 12,000 km/s.

The following Classification spectrum was provided:

Obsdate: 2019-04-17 15:34:10
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/2019daj