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Asiago classification of PSN J03421688-0443185 in NGC 1418 as young type-Ia SN

ATel #5638; L. Tomasella, S. Benetti, L. Tartaglia, P. Ochner, A. Pastorello, E. Cappellaro, M. Turatto, N. Elias-Rosa (INAF Osservatorio Astronomico di Padova)
on 7 Dec 2013; 22:15 UT
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)

Subjects: Optical, Supernovae

We report that an optical spectrogram (range 340-820 nm; resolution 1.3 nm) of PSN J03421688-0443185 (Zheng et al., ATel #5637), obtained on Dec. 07.84 UT with the Asiago 1.82-m Copernico Telescope (+ AFOSC), shows it to be a normal type-Ia supernova. Adopting for the host galaxy (NGC 1418) a recessional velocity of 4204 km/s (Catinella et al. 2005, AJ 130, 1037C; via NED), a good match is found with type-Ia supernovae about 10 days before B-band maximum light. An expansion velocity of about 13800 km/s is derived from the minimum of the Si II 635-nm line. The Asiago classification spectra are posted at website 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).