SOAR telescope spectroscopic classification of optical transients
ATel #12508; R. Cartier (CTIO), G. Terreran, R. Margutti (Northwestern) and C. Corco (CTIO)
on 16 Feb 2019; 20:07 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Regis Cartier (rgcartier@gmail.com)
Subjects: Optical, Supernovae
We report the following supernova classifications. The targets were supplied by the Zwicky Transient Facility (https://www.ztf.caltech.edu/; Kulkarni et al. 2018, ATel 11266) data stream processed through the Lasair broker (http://lasair.roe.ac.uk/), the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts), and by the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680). The observations were performed on the night of 2019 February 13 at the 4.1-m SOAR Telescope equipped with the Goodman High Throughput Spectrograph using the 400 lines/mm grating, and a slit width of 1.0 arc second, resulting in a spectral coverage from 380 nm to 775 nm with a resolution of 0.6 nm. Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and Gelato (Harutyunyan et al., 2008, A&A, 488, 383).
Survey Name | IAU Name | RA (J2000) | Dec (J2000) | Disc. Date | Source | Disc Mag | z | Type | Phase | Notes
ATLAS19dhw | SN2019awq | 04:23:29.34 | -15:46:01.0 | 20190213 | ATLAS | 18.44 | 0.036 | Ia | < -10 | (1,2)
ZTF19aafmvdb | SN2019ahs | 12:01:42.93 | +20:24:13.7 | 20190126 | ZTF | 19.92 | 0.023 | Ia | at max | (3)
Gaia19amv | SN2019atg | 12:02:58.09 | -30:07:49.8 | 20190207 | Gaia | 18.77 | 0.044 | Ibc | | (1,4)
ZTF19aakiznm | SN2019awd | 14:11:44.31 | +00:58:53.0 | 20190212 | ZTF | 19.04 | 0.093 | Ia | -7 to -4 | (3,5)
(1) Redshift from NED.
(2) The expansion velocity of the SiII 6355 line is about 15000 km/s .
(3) Redshift from host galaxy narrow emission lines.
(4) Noisy spectrum obtained well into the twilight, the phase is uncertain.
(5) The spectrum is significantly contaminated by emission from the host galaxy.
