AstroNote 2020-252

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2020-12-12 15:02:14
Type: Object/s-Discovery/Classification
adH0cc spectroscopic classification of SN 2020acae
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 2020acae, which shows it to be a normal Type Ia supernova close to maximum light.

The adH0cc programme for an "accurate determination of H0 with core-collapse supernovae" reports the classification of the optical transient SN 2020acae. The target was supplied by the Zwicky Transient Facility ZTF (Kulkarni 2018, 2018ATel11266....1K). The observations were performed on the night of 2020 December 11 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. The classification was done using GELATO (Harutyunyan et al. 2008 2008A&A...488..383H).

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftSourcePhaseRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020acae [ZTF20acwcqnv]08:06:49.836+23:57:03.98SN Ia0.09SDSS J080649.65+235704.00.136ZTF-1dThe spectrum is similar to those of normal Type Ia supernovae. According to GELATO (Harutyunyan et al., 2008), the spectrum is most similar to that of SN 2003du about a day before maximum. The redshift has been determined through template matching with GELATO.08:06:49.841+23:57:03.71SN Ia0.09