Asiago spectroscopic observation of two transients
ATel #13333; P. Ochner, S. Benetti, A. Pastorello, E. Cappellaro, N. Elias-Rosa, L. Tomasella, M. Turatto (INAF Osservatorio Astronomico di Padova)
on 6 Dec 2019; 14:50 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN,
335, 841) reports the spectroscopic observation of ATLAS19bcji (SN 2019vrg),
and ATLAS19bcjh
(SN 2019wbg).
The targets were supplied by the ATLAS survey (Tonry et al. (2011, PASP,
123, 58).
The observation was performed with the Asiago 1.82m Copernico Telescope (+
AFOSC; range 340-820 nm; resolution 1.4 nm).
Survey name | IAU name | Host galaxy| Disc. Date (UT)| Obs. Date (UT)| redshift|type | phase | notes
ATLAS19bcji |SN 2019vrg| Anonymous | 2019-12-03 | 2019-12-05 | 0.14 |Ia |1w after max| 1
ATLAS19bcjh |SN 2019wbg| NGC4045 | 2019-12-03 | 2019-12-05 | 0.007 |impostor| pre-max | 2
(1) The spectrum is consistent with those of SN Ia about one week after
maximum. The expansion velocity deduced from the Si II 635.5 nm absorption
is about 11000 km/s.
(2) The spectrum resembles that of SN 2000ch in NGC 3432 (Wagner et al.
2004, PASP, 116, 326), showing prominent Balmer lines in emission, with FWHM
~ 2000 km/s.
The classification was performed using the GELATO (Harutyunyan et
al. 2008, A&A, 488, 383)
and SNID (Blondin and Tonry 2007, ApJ,
666, 1024) tools.
The Asiago classification spectra are posted at the website http://sngroup.oapd.inaf.it.
Padova-Asiago SN Group
