TNS Classification Report No. 20916 [ 2025TNSCR1573....1K ]
Date Received (UTC): 2025-04-28 19:30:17 Sender: Ravjit Kaur
Group: UCSC
Ravjit Kaur (UCSC), Kyle Davis (UCSC), Ryan Foley (UCSC) report/s a classification of object: SN 2025cav
Type: SN IcRedshift: 0.092
Remarks: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. We note that at z = 0.092, the SN has a peak r-band absolute magnitude of ~-19 mag, which is high for the SN Ic luminosity distribution (Drout et al., 2011, ApJ, 741, 97). Although SNID also finds acceptable matches to SNe Ia-91T, the light curve shows a long photometric rise of nearly 2 months. Thus, we rule out (relatively normal) SN Ia classifications.
The following Classification spectrum was provided:
Obsdate: 2025-04-09 06:03:19
Instrument: KAST
Telescope: 3m Lick Shane Reflector
Details of the object and its spectra can be viewed here: https://sandbox.wis-tns.org/object/2025cav
Date Received (UTC): 2025-04-28 19:30:17 Sender: Ravjit Kaur
Group: UCSC
Ravjit Kaur (UCSC), Kyle Davis (UCSC), Ryan Foley (UCSC) report/s a classification of object: SN 2025cav
Type: SN IcRedshift: 0.092
Remarks: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. We note that at z = 0.092, the SN has a peak r-band absolute magnitude of ~-19 mag, which is high for the SN Ic luminosity distribution (Drout et al., 2011, ApJ, 741, 97). Although SNID also finds acceptable matches to SNe Ia-91T, the light curve shows a long photometric rise of nearly 2 months. Thus, we rule out (relatively normal) SN Ia classifications.
The following Classification spectrum was provided:
Obsdate: 2025-04-09 06:03:19
Instrument: KAST
Telescope: 3m Lick Shane Reflector
Details of the object and its spectra can be viewed here: https://sandbox.wis-tns.org/object/2025cav