Classification certificate for object 2019arb
TNS Classification Report No. 3539 [ 2019TNSCR.266....1S ]

Date Received (UTC): 2019-02-22 11:53:10
Sender: Dr. Hanna Sai
Group: TNTS

Hanna Sai report/s a classification of object: SN 2019arb

Type: SN Ia
Redshift: 0.014

Remarks: The spectrum is consistent with a subluminous type Ia supernova at a few days after the maximum light. Cross-correlation with a library of supernova spectra using the comparison tool "GELATO" (Harutyunyan et al., 2008, A&A, 488, 383) shows that it mathces with SN 1999by at t = +4.7 days from the maximum light.

The following Classification spectrum was provided:

Obsdate: 2019-02-09 15:28:04
Instrument: Cassegrain
Telescope: 2.16m Beijing Astronomical Observatory Telescope

Details of the object and its spectra can be viewed here: