TNS Classification Report No. 16507 [ 2024TNSCR.344....1N ]
Date Received (UTC): 2024-02-04 02:26:47 Sender: Megan Newsome
Group: Global SN Project
Megan Newsome (LCO/UCSB), Sara Faris (TAU), Iair Arcavi (TAU), Joseph Farah, D. Andrew Howell, Curtis McCully, Estefania Padilla Gonzalez, Craig Pellegrino, Giacomo Terreran report/s a classification of object: SN 2024bhm
Type: SN IaRedshift: 0.091456
Remarks: Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find best fits to SNe Ia near maximum light, including SN 2011fe within a day of peak. The supernova is closest to galaxy AM 1006-263 (z = 0.045, 20096dF...C...0000J:, value from NED). Adopting this redshift we measure a Si II 6355 velocity of approximately 10,000 km/s. Adopting the distance modulus computed from this redshift (36.4), the g-band absolute magnitude of the object roughly coeval with the spectrum is -18.93 (apparent magnitude 17.5, from ZTF). This absolute magnitude and velocity is consistent with an SN Ia near maximum light.
The following Classification spectrum was provided:
Obsdate: 2024-02-03 11:39:13
Instrument: FLOYDS-N
Telescope: Faulkes Telescope North
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2024bhm
Date Received (UTC): 2024-02-04 02:26:47 Sender: Megan Newsome
Group: Global SN Project
Megan Newsome (LCO/UCSB), Sara Faris (TAU), Iair Arcavi (TAU), Joseph Farah, D. Andrew Howell, Curtis McCully, Estefania Padilla Gonzalez, Craig Pellegrino, Giacomo Terreran report/s a classification of object: SN 2024bhm
Type: SN IaRedshift: 0.091456
Remarks: Using Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find best fits to SNe Ia near maximum light, including SN 2011fe within a day of peak. The supernova is closest to galaxy AM 1006-263 (z = 0.045, 20096dF...C...0000J:, value from NED). Adopting this redshift we measure a Si II 6355 velocity of approximately 10,000 km/s. Adopting the distance modulus computed from this redshift (36.4), the g-band absolute magnitude of the object roughly coeval with the spectrum is -18.93 (apparent magnitude 17.5, from ZTF). This absolute magnitude and velocity is consistent with an SN Ia near maximum light.
The following Classification spectrum was provided:
Obsdate: 2024-02-03 11:39:13
Instrument: FLOYDS-N
Telescope: Faulkes Telescope North
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2024bhm