AstroNote 2020-230

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2020-11-15 18:29:43
Type: Object/s-Discovery/Classification
adH0cc spectroscopic classification of SN 2020zia
Authors: C. Vogl, A. Floers, S. Taubenberger, G. Csoernyei, 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 2020zia, 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 2020zia. The target was supplied by the Zwicky Transient Facility ZTF (Kulkarni 2018, 2018ATel11266....1K). The observations were performed on the night of 2020 November 14 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
TNS2020zia [ZTF20acpomqu]21:59:03.220-07:48:32.79SN II0.052SDSS J215902.91-074832.90.052ZTF7dThe spectrum shows a blue continuum with weak P-Cygni lines of hydrogen and helium superimposed. From the spectroscopic appearance and the photometric constraints, we estimate a phase about 7d after explosion. The redshift has been determined from narrow host-galaxy emission lines.21:59:03.220-07:48:32.79SN II0.052