TNS Classification Report No. 228 [ 2016TNSCR.360....1B ]
Date Received (UTC): 2016-05-17 18:05:27 Sender: Dave Balam
Group: DAO_OTS
Dave Balam report/s a classification of object: SN 2016ccl
Type: SN IaRedshift: 0.024
Remarks: A spectrum of AT2016ccl (ref) was obtained using the 1.82-m Plaskett telescope (National Research Council of Canada) covering the range 367-710 nm (resolution 0.35 nm) on UT May 10.32 that reveals the object to be a type-Ia (normal) supernova several days past maximum light. Cross-correlation of the spectrum with a template library using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) has yielded a good fit to the type-Ia supernova 2002er at 3 days post-maximum light. The apparent host galaxy is IC 3895 with a published (SDSS 2006) redshift of 0.024. If we assume that the redshift is correct for the supernova then we measure an expansion velocity for the Si II (rest 635.5 nm) feature of 11,300 km/s.
The following Classification spectrum was provided:
Obsdate: 2016-05-10 06:13:23
Instrument: Plaskett
Telescope: Dominion AStrophysical Observatory
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2016ccl
Date Received (UTC): 2016-05-17 18:05:27 Sender: Dave Balam
Group: DAO_OTS
Dave Balam report/s a classification of object: SN 2016ccl
Type: SN IaRedshift: 0.024
Remarks: A spectrum of AT2016ccl (ref) was obtained using the 1.82-m Plaskett telescope (National Research Council of Canada) covering the range 367-710 nm (resolution 0.35 nm) on UT May 10.32 that reveals the object to be a type-Ia (normal) supernova several days past maximum light. Cross-correlation of the spectrum with a template library using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) has yielded a good fit to the type-Ia supernova 2002er at 3 days post-maximum light. The apparent host galaxy is IC 3895 with a published (SDSS 2006) redshift of 0.024. If we assume that the redshift is correct for the supernova then we measure an expansion velocity for the Si II (rest 635.5 nm) feature of 11,300 km/s.
The following Classification spectrum was provided:
Obsdate: 2016-05-10 06:13:23
Instrument: Plaskett
Telescope: Dominion AStrophysical Observatory
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2016ccl