TNS Classification Report No. 9391 [ 2021TNSCR1222....1P ]

Date Received (UTC): 2021-04-15 16:32:53
Sender: Ismael Perez-Fournon
Group: SIRAH

Ismael Perez-Fournon, Frederick Poidevin, Camilo Jimenez Angel (IAC and ULL), Raphael Shirley (Univ. of Southampton), Rui Marques Chaves (Univ. of Geneva), Saurabh W. Jha, Mi Dai (Rutgers), and Steve Rodney (Univ. of South Carolina), on behalf of the SIRAH team report/s a classification of object: SN 2021jac

Type: SN Ia
Redshift: 0.0818

Remarks: SN Ia-norm at about 6 to 9 days before maximum light. Classification using SNID (S. Blondin & J. L. Tonry 2007, ApJ, 666, 1024). The reported redshift was measured from emission and absorption lines detected in a separate LT SPRAT spectrum of the nucleus of the host galaxy SDSS J155053.32+615843.8 obtained on 2021-04-15 04:45:00.325.

The following Classification spectrum was provided:

Obsdate: 2021-04-13 03:06:12
Instrument: SPRAT
Telescope: Liverpool Telescope

Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2021jac