TNS Classification Report No. 14477 [ 2023TNSCR.426....1C ]
Date Received (UTC): 2023-02-23 12:59:27 Sender: Panos Charalampopoulos
Group: NUTS2
Panos Charalampopoulos, Maximilian Stritzinger, Eric. Y. Hsiao report/s a classification of object: SN 2023cjd
Type: SN IaRedshift: 0.014
Remarks: P. Charalampopoulos (Turku), M. Stritzinger (Aarhus), and E. Y. Hsiao (FSU), on behalf of the NUTS2 and POISE collaborations reports the classification of SN 2023cjd. Inspection of an optical spectrum obtained with the Nordic Optical Telescope on 2023-03-23 (i.e., MJD 59998.04) reveal it to be a type Ia supernova. Comparison with a library of supernovae spectra using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), indicate SN 2023cjd resembles SN 2002bo around a week before peak brightness. From the minimum of the Si-II 6355 Angstrom absorption feature and assuming a redshift to the host galaxy of 0.014 (Jones et al. 2009, The 6dF Galaxy Survey Data Release 3), we compute a Doppler blue-shifted expansion velocity with an excess of 17,000 km/s.
The following Classification spectrum was provided:
Obsdate: 2023-02-23 00:40:23
Instrument: ALFOSC
Telescope: Nordic Optical Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023cjd
Date Received (UTC): 2023-02-23 12:59:27 Sender: Panos Charalampopoulos
Group: NUTS2
Panos Charalampopoulos, Maximilian Stritzinger, Eric. Y. Hsiao report/s a classification of object: SN 2023cjd
Type: SN IaRedshift: 0.014
Remarks: P. Charalampopoulos (Turku), M. Stritzinger (Aarhus), and E. Y. Hsiao (FSU), on behalf of the NUTS2 and POISE collaborations reports the classification of SN 2023cjd. Inspection of an optical spectrum obtained with the Nordic Optical Telescope on 2023-03-23 (i.e., MJD 59998.04) reveal it to be a type Ia supernova. Comparison with a library of supernovae spectra using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), indicate SN 2023cjd resembles SN 2002bo around a week before peak brightness. From the minimum of the Si-II 6355 Angstrom absorption feature and assuming a redshift to the host galaxy of 0.014 (Jones et al. 2009, The 6dF Galaxy Survey Data Release 3), we compute a Doppler blue-shifted expansion velocity with an excess of 17,000 km/s.
The following Classification spectrum was provided:
Obsdate: 2023-02-23 00:40:23
Instrument: ALFOSC
Telescope: Nordic Optical Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2023cjd