TNS Classification Report No. 15101 [ 2023TNSCR1474....1P ]
Date Received (UTC): 2023-06-23 20:31:25 Sender: Craig Pellegrino
Group: Global SN Project
Craig Pellegrino (UCSB/LCO), Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Giacomo Terreran report/s a classification of object: SN 2023ljf
Type: SN IbRedshift: 0.015
Remarks: The spectrum, obtained roughly two days after the initial ATLAS discovery, shows a blue continuum superimposed with several broad P Cygni features. From the narrow host H-alpha line we measure a redshift z=0.015. Assuming this redshift, the broad features are well matched by He I with absorption velocities of 14,000 km/s. Recent ZTF and ATLAS photometry show that the light curve is rising. Further follow-up is encouraged.
The following Classification spectrum was provided:
Obsdate: 2023-06-23 09:29:05
Instrument: FLOYDS-N
Telescope: Faulkes Telescope North
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023ljf
Date Received (UTC): 2023-06-23 20:31:25 Sender: Craig Pellegrino
Group: Global SN Project
Craig Pellegrino (UCSB/LCO), Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Giacomo Terreran report/s a classification of object: SN 2023ljf
Type: SN IbRedshift: 0.015
Remarks: The spectrum, obtained roughly two days after the initial ATLAS discovery, shows a blue continuum superimposed with several broad P Cygni features. From the narrow host H-alpha line we measure a redshift z=0.015. Assuming this redshift, the broad features are well matched by He I with absorption velocities of 14,000 km/s. Recent ZTF and ATLAS photometry show that the light curve is rising. Further follow-up is encouraged.
The following Classification spectrum was provided:
Obsdate: 2023-06-23 09:29:05
Instrument: FLOYDS-N
Telescope: Faulkes Telescope North
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023ljf