Classification certificate for object 2017wb
TNS Classification Report No. 759 [ 2017TNSCR.132....1H ]

Date Received (UTC): 2017-01-30 19:29:56
Sender: Dr. Griffin Hosseinzadeh
Group: LCOGT SN-KP

Griffin Hosseinzadeh, Iair Arcavi, D. Andrew Howell, Curtis McCully, Stefano Valenti report/s a classification of object: SN 2017wb

Type: SN Ia
Redshift: 0.03

Remarks: Using Superfit (Howell et al. 2005, ApJ, 634, 1190), we find good fits to several normal Type Ia supernovae about a week before maximum light at the redshift of the host galaxy (z=0.03, derived from the narrow H-alpha line in the spectrum), but with fits as early as -15 days and as late as -1 day. The 0.5 mag/day rise from ASAS-SN favors an earlier phase, while the current absolute magnitude (M_V ~ -19 mag) favors a phase closer to peak.

The following Classification spectrum was provided:

Obsdate: 2017-01-30 09:12:36
Instrument: FLOYDS-N
Telescope: Faulkes Telescope North

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