AstroNote 2020-251

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2020-12-11 16:00:17
Type: Object/s-Discovery/Classification
adH0cc spectroscopic classification of SN 2020abty
Authors: G. Csoernyei, S. Taubenberger, C. Vogl, A. Floers, M. G. Cudmani, A. Holas, W. Hillebrandt, S. H. Suyu (MPA Garching), B. Leibundgut, J. Spyromilio (ESO), S. J. Smartt, M. Dobson (QUB), R. Kotak (Turku), R. Bruch, A. Gal-Yam (Weizmann), C. Lemon (Lausanne)
Source Group: adH0cc
We have obtained an optical spectrum of SN 2020abty, which shows it to be a young Type II supernova.

The adH0cc programme for an "accurate determination of H0 with core-collapse supernovae" reports the classification of the optical transient SN 2020abty. The target was supplied by the ATLAS survey (Tonry et al. 2018, 2018PASP..130f4505T) and the Pan-STARRS survey for Transients (Huber et al. 2015, 2015ATel.7153....1). The observations were performed  on the night of 2020 December 10 with the ESO Very Large Telescope UT1, equipped with the FORS2 spectrograph and grism 300V, covering a wavelength range from 3400 to 9600 Å at a resolution of 10 Å.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftSourcePhaseRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020abty [ATLAS20bgrn]01:24:38.586-09:35:57.37SN II0.04185SDSS J012437.78-093604.60.04185Pan-STARRS, ATLAS8dThe blue continuum with very weak H features along with the photometric information from ATLAS suggests that this is a young Type II SN about a week after explosion. The phase was estimated based on the ATLAS light curve. The host redshift is known from SDSS observations.01:24:38.580-09:35:57.55SN II0.04185