Asiago classification of PSN J11450358+1958254 in NGC 3861 as a young type-Ia SN
ATel #5958; L. Tomasella, S. Benetti, E. Cappellaro, N. Elias-Rosa, P. Ochner, A. Pastorello, M. Turatto (INAF Osservatorio Astronomico di Padova)
on 9 Mar 2014; 01:21 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)
Subjects: Optical, Supernovae
We report that an optical spectrogram of PSN J11450358+1958254 (range 340-820 nm; resolution 1.3 nm), obtained on March 8.99 UT with the Asiago 1.82-m Copernico Telescope (+ AFOSC), shows it to be a type-Ia supernova. Adopting for the host galaxy (NGC 3861) the redshift z = 0.016982 (Cortese et al. 2008, MNRAS 383, 1519 via NED),
a good match is found with several type-Ia supernovae about one week before B-band maximum light.
An expansion velocity of about 13900 km/s is derived from the minimum of the Si II 635-nm line.
The Asiago classification spectra are posted at URL http://sngroup.oapd.inaf.it ; classification was made via GELATO
(Harutyunyan et al. 2008, A.Ap. 488, 383) and SNID (Blondin and Tonry 2007, Ap.J. 666, 1024).
Padova Asiago SN group
