Classification certificate for object 2018hdo
TNS Classification Report No. 2861 [ 2018TNSCR1537....1H ]

Date Received (UTC): 2018-10-09 21:25:43
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 2018hdo

Type: SN Ia
Redshift: 0.041

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 around the maximum light at the redshift of 0.041. At the redshift of 0.041, corresponding to the distance modulus of 36.26, the absolute magnitude in V-band taken at 2018-10-08 23:48:10 is -19.04 mag which is consistent with the Ia classification and its phase. We measure the SiII velocity of 11,000 km/s from the absorption lines.

The following Classification spectrum was provided:

Obsdate: 2018-10-09 16:08:23
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/2018hdo