Classification certificate for object 2016D
TNS Classification Report No. 19 [ 2016TNSCR..35....1A ]

Date Received (UTC): 2016-01-19 16:28:11
Sender: Dr. Iair Arcavi
Group: LCOGT SN-KP

I. Arcavi, G. Hosseinzadeh, D. A. Howell, C. McCully (LCOGT/UCSB) report/s a classification of object: SN 2016D

Type: SN Ia
Redshift: 0.045

Remarks: We obtained a spectrum of AT 2016D on 2016 January 17.5 UT with the LCOGT robotic FLOYDS instrument mounted on the Faulkes Telescope South. Using Superfit (Howell et al. 2005, ApJ, 634, 119) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find good fits to a Type Ia supernova 2-3 weeks after maximum light at the redshift of the host galaxy (z=0.045; Huchra et al. 2012, ApJS, 199, 26). A similar classification (obtained with different data) was first reported by Hounsell et al. (2016, ATel 8546). We find the spectrum to be highly reddened with E(B-V) ~ 1.1. Correcting for some of the host galaxy contamination we find that the SN magnitude is V~18.7 (corresponding to an absolute magnitude of -17.8 at the observed redshift).

The following Classification spectrum was provided:

Obsdate: 2016-01-17 11:31:12
Instrument: FLOYDS-S
Telescope: Faulkes Telescope South

Remarks: 2" slit used.

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2016D