TNS Classification Report No. 14853 [ 2023TNSCR1029....1G ]
Date Received (UTC): 2023-05-08 20:17:15 Sender: Sebastian Gomez
Group: FLEET
Sebastian Gomez (STScI), Daichi Hiramatsu (Harvard CfA), Edo Berger (Harvard CfA), Peter Blanchard (Northwestern) report/s a classification of object: SN 2023cpq
Type: SN Ia-CSMRedshift: 0.17
Remarks: 2023cpq was selected as a possible SLSN-I by our FLEET program with a P(SLSN-II) = 0.79 (Gomez et al., 2020, ApJ, 904, 74). We find a good match to SN Ia-CSM at around 60 days past peak. The redshift of z = 0.17 is determined assuming the broad emission like is H-alpha. Nevertheless, we also find reasonable matches to Type-I SLSNe at a similar phase, but in this case the redshift would be z = 0.19 and the broad emission line would correspond to [OI].
The following Classification spectrum was provided:
Obsdate: 2023-05-01 00:00:00
Instrument: Goodman
Telescope: Southern Astrophysical Research Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023cpq
Date Received (UTC): 2023-05-08 20:17:15 Sender: Sebastian Gomez
Group: FLEET
Sebastian Gomez (STScI), Daichi Hiramatsu (Harvard CfA), Edo Berger (Harvard CfA), Peter Blanchard (Northwestern) report/s a classification of object: SN 2023cpq
Type: SN Ia-CSMRedshift: 0.17
Remarks: 2023cpq was selected as a possible SLSN-I by our FLEET program with a P(SLSN-II) = 0.79 (Gomez et al., 2020, ApJ, 904, 74). We find a good match to SN Ia-CSM at around 60 days past peak. The redshift of z = 0.17 is determined assuming the broad emission like is H-alpha. Nevertheless, we also find reasonable matches to Type-I SLSNe at a similar phase, but in this case the redshift would be z = 0.19 and the broad emission line would correspond to [OI].
The following Classification spectrum was provided:
Obsdate: 2023-05-01 00:00:00
Instrument: Goodman
Telescope: Southern Astrophysical Research Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023cpq