DRAFT
2023-10-24 18:20:43
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.277....1K
NOT spectroscopic observations of optical transients
Authors: H. Kankaanpää, M. Kaseva, K. Kelder, A. P. Nitindala, M. Ojanperä, P. Charalampopoulos, C. Humina, T. Kangas, K. Matilainen, J. Thiim Gadeberg, E. Kankare, S. Mattila
Keywords: Transient, Supernova
Abstract:
We report the classification of two optical transients (two type Ia SNe).

We report the classification of three optical transients observed on 2023 October 23. Observations were performed on the Nordic Optical Telescope (NOT) at El Roque de Los Muchachos (Spain) using the ALFOSC instrument as part of the 2023 NOT observing school.

Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B).

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2023vpd 22:40:12.926 +19:30:24.78 SN Ia 0.034 SDSS J224012.90+193024.7 (Blondin and Tonry 2007 2007ApJ...666.1024B) fit. The light-curve is rising. At the last ATLAS o-band detection (m=18.6, MJD=60241.34), the above redshift would imply an absolute magnitude of M~ -17.3. 22:40:12.907 +19:30:24.54 SN Ia 0.034
TNS 2023vof 01:39:36.375 +29:36:09.63 SN Ia 0.073 Redshift derived from SNID (Blondin and Tonry 2007 2007ApJ...666.1024B) fit. The light-curve is reaching the peak. At the last ATLAS o-band detection (m=18.3, MJD=60241.4), the above redshift would imply an absolute magnitude of M~ -19.3. 01:39:36.348 +29:36:09.77 SN Ia 0.078
File Comments
2023vpd_20231023_NOT_gr4.ascii
2023vpd_20231023_NOT_gr4_snid.png SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) fit to the spectrum. There are several good matches with 91-T like objects.
AT2023vof_20231023_NOT_gr4.ascii
AT2023vof_20231023_NOT_gr4_snid.png SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) fit to the spectrum.

Comments