DRAFT
2020-02-25 19:39:44
Type: Object/s-Discovery/Classification
Bibcode: 2020TNSAN..51....1L
adH0cc spectroscopic classification of SN 2020dbd
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Floers, S. Taubenberger, W. Hillebrandt, S. Suyu (MPA Garching), S. J. Smartt, M. Dobson (QUB), R. Kotak (Turku), R. Bruch, A. Gal-Yam (Weizmann)
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Abstract:
We have obtained an optical spectrum of SN 2020dbd, which shows it to be a young Type II supernova at redshift 0.042.

The adH0cc programme for an "accurate determination of H0 with core-collapse supernovae" reports the classification of the optical transient SN 2020dbd. 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 February 24 with the ESO Very Large Telescope UT1, equipped with the FORS2 spectrograph and grism 300V, covering a wavelength range from 3400 to 9600A at a resolution of 10A.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Source Phase Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2020dbd [ZTF20aapjiwl] 09:31:57.264 +33:12:34.74 SN II 0.042335 SDSS J093157.85+331240.7 0.042335 ZTF, ATLAS 6d A blue, almost featureless continuum with indications of broad P-cygni features of H-alpha and He I 5876, suggests this to be a young Type II SN. The phase has been estimated from ZTF photometric constraints. 09:31:57.282 +33:12:34.71 SN II 0.042335
File Comments
SN2020dbd_20191030_FORS2.dat Quick-reduction spectrum, corrected for telluric absorption.

Comments