Asiago spectroscopic classification of ASASSN-20pu (AT2020acpc)
ATel #14273; L. Tomasella, S. Benetti, E. Cappellaro, P. Ochner (INAF Osservatorio Astronomico di Padova)
on 17 Dec 2020; 11:17 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 ASASSN-20pu (AT2020acpc)
The target was supplied by the All Sky Automated Survey for SuperNovae (ASAS-SN, Shappee et al. 2014), and reported in the Transient Name Server (TNS).
The observations were obtained 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
ASASSN-20pu | SN 2020acpc | WISEA J094236.66+241835.8 | 2020-12-12 12:28:48 | 2020-12-16 22:02 | 0.051371 | Ia | post max | 1
(1) The spectrum is consistent with those of normal SNe Ia few days after maximum light. The expansion velocity deduced from the Si II 6350.5 nm is about 9700 km/s. Redshift of the host galaxy is from the Sloan Digital Sky Survey Data Release 6, Sept. 2007 (via NED).
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.
