DRAFT
2023-10-26 19:54:02
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.282....1O
NOT spectroscopic observations of optical transients
Authors: M. Ojanperä, H. Kankaanpää, M. Kaseva, K. Kelder, A. P. Nitindala, P. Charalampopoulos, C. Humina, T. Kangas, K. Matilainen (Turku), G. Fedorets (Helsinki), N. Koivisto, J. Thiim Gadeberg (NOT), E. Kankare, S. Mattila (Turku)
Keywords: Transient, Supernova
Abstract:
We report the classification of two optical transients (two type Ia SNe).

We report the classification of two optical transients observed on 2023 October 25. 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 at the University of Turku.

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 2023vtp [ZTF23abjxqwr] 05:03:39.763 -16:32:38.93 SN Ia-91T-like 0.042 Redshift based on a narrow H-alpha line from the host galaxy, and consistent with SNID (Blondin and Tonry 2007) fits. The best SNID fit is to a 91T-type SN Ia close to peak. 05:03:39.750 -16:32:38.87 SN Ia-91T-like 0.042
TNS 2023vhk [ATLAS23uik] 10:04:56.337 +27:28:53.98 SN Ia 0.052 Redshift based on SDSS spectrum of the host galaxy, and consistent with SNID (Blondin and Tonry 2007) fits. The best SNID fit is to a normal SN Ia a few days after peak. 10:04:56.316 +27:28:53.94 SN Ia 0.052
File Comments
AT2023vtp_20231025_NOT_gr4.dat
AT2023vhk_20231025_NOT_gr4.dat

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