DRAFT
2021-05-14 21:32:08
Type: Object/s-Discovery/Classification
Bibcode: 2021TNSAN.153....1S
Updated Classification of SN 2021ltk with GMOS on the Gemini South Telescope
Authors: M. R. Siebert, R. J. Foley (UCSC)
Source Group: UCSC
Keywords: Supernova, Transient, Optical, Spectroscopy
Abstract:
We report the updated spectroscopic classification of SN 2021ltk as a SN II.

YSE, the Young Supernova Experiment, reports the updating of the following supernova classification. The target was supplied by ATLAS. Observations were performed on GMOS on the Gemini-South telescope on the night of 05/13/2021. Classifications were performed using SNID (Blondin & Tonry 2007  2007ApJ...666.1024B). Upon further inspection of the spectrum taken with the R400 grating, it was revealed that this is a SN II. The spectrum is similar to early spectra of the type II SN 1999em. We measure an H-alpha absorption velocity of -10,200 km/s.

We thank the staff at the Gemini-South telescope (specifically Karleyne Silva and Pablo Prado) for their rapid response in acquiring these follow up observations.

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 2021ltk [ATLAS21obo] 14:05:37.895 -39:12:02.54 SN II 0.013643 IC 4367 14:05:37.900 -39:12:02.66 SN II 0.013643

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