TNS Classification Report No. 18343 [ 2024TNSCR3894....1S ]

Date Received (UTC): 2024-10-07 14:48:19
Sender: Avinash Singh
Group: None

Avinash Singh, Jesper Sollerman, Anjasha Gangopadhyay (OKC, SU), Kate Maguire (Trinity College Dublin) report/s a classification of object: SN 2024vcn

Type: SN I
Redshift: 0.03326

Remarks: We tentatively classify SN 2024vcn as a peculiar Type Ia/Ic supernova based on follow-up spectra from the NOT. The spectra also reveal relatively narrow width absorption features of Fe II, Si II, and Ca II in the photospheric phase with a blueshift of around 13,000 km/s. The spectra best match Type Ic SN 1994I, and the Type Ia-pec SN 2005hk using SNID (Blondin & Tonry 2008) and NGSF (Howell et al. 2005). The source is clearly a SN I, but at present, we can not unambiguously distinguish between a stripped-envelope Type Ic and a bright thermonuclear SN Iax.

The following Classification spectrum was provided:

Obsdate: 2024-10-05 02:55:14
Instrument: ALFOSC
Telescope: Nordic Optical Telescope

Details of the object and its spectra can be viewed here: https://sandbox.wis-tns.org/object/2024vcn