We report the spectroscopic classification of the following transients discovered by Zwicky Transient Facility (https://www.ztf.caltech.edu/; Kulkarni et al. 2018, ATel #11266) and by the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014, ApJ, 788, 48 and http://www.astronomy.ohio-state.edu/~assassin/index.shtml). The observations were performed with the IMACS spectrograph mounted on Walter Baade 6.5-m Magellan telescope on Las Campanas Observatory.
We used SNID (Blondin and Tonry, 2007, ApJ, 666, 1024) cross-correlation software to classify the SN candidates spectra. We found three of them to match typical type Ia SNe spectra, while the other two are very young SNe of type Ia and II. For the latter two SNe SNID was not able to provide a good match to the spectra and phase due to their young peculiar spectra.
Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Notes | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TNS | 2020aary [ASASSN-20op] | 03:21:29.882 | -61:46:11.89 | SN Ia | 0.026 | WISEA J032130.17-614613.0 | (1,5) | 03:21:29.860 | -61:46:11.96 | ||||
TNS | 2020aatc [ZTF20actddoh] | 02:48:16.421 | -10:15:07.41 | SN Ia | 0.01525 | MCG -02-08-007 | 0.015254 | (2,4,6) | 02:48:16.430 | -10:15:07.52 | SN Ia | 0.01525 | |
TNS | 2020aatb [ZTF20acrzwvx] | 05:24:46.411 | -15:56:31.43 | SN II | 0.00995 | NGC 1906 | 0.009954 | (2,4) | 05:24:46.412 | -15:56:31.43 | SN II | 0.009954 | |
TNS | 2020aaul [ZTF20actjbaf] | 08:01:41.410 | -10:24:21.02 | SN Ia | 0.08 | WISEA J080141.37-102421.9 | (3,5) | 08:01:41.403 | -10:24:21.15 | SN Ia | 0.08 | ||
TNS | 2020aauk [ZTF20actiymd] | 08:17:50.951 | -05:43:09.67 | SN Ia | 0.03943 | WISEA J081750.69-054305.6 | 0.039434 | (2,5) | 08:17:50.950 | -05:43:09.70 | SN Ia | 0.03943 |
Comments
Dr. Regis Cartier (Cerro Tololo Inter-American Observatory)
Wed, 11/25/2020 - 19:25
Notes:
Notes: