AstroNote 2020-205

Primary tabs

2020-10-24 14:24:08
Type: Object/s-Discovery/Classification
adH0cc spectroscopic classification of SN 2020xlo
Authors: S. Taubenberger, C. Vogl, A. Floers, 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 2020xlo, 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 2020xlo. The target was supplied by the Zwicky Transient Facility ZTF (Kulkarni 2018, 2018ATel11266....1K) and the ATLAS survey (Tonry et al. 2018, 2018PASP..130f4505T). The observations were performed on the night of 2020 October 23 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
TNS2020xlo [ZTF20aclftuo]05:49:27.577-24:46:09.64SN II0.04391ESO 488- G 0340.043917dThe spectrum shows a blue continuum, with He II emission and weak P-Cygni lines of H and He I superimposed. Narrow emission lines can be attributed to an underlying H-II region. The phase has been estimated from ZTF photometric constraints.05:49:27.581-24:46:09.64SN II0.04391