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Spectra classification of PSN J21142287+1514407 with the Asiago 1.22m telescope

ATel #4684; P. Ochner, L. Tomasella, S. Benetti, E. Cappellaro, A. Pastorello and M. Turatto, Osservatorio Astronomico di Padova, Istituto Nazionale di Astrofisica
on 28 Dec 2012; 22:47 UT
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)

Subjects: Optical, Supernovae

Optical spectroscopy (range 340-800 nm; resolution 0.7 nm) obtained on Dec. 28.69 UT with the Asiago 1.22-m Galileo Telescope (+ B&C), shows that PSN J21142287+1514407 is a type-Ia event. Adopting for the host galaxy UGC 11706 the redshift z = 0.015798 (Bottinelli et al. 1993, A&AS 102, 57B, via NED), the best fit is obtained with various type-Ia supernovae around maximum light. The expansion velocity as deduced from the position of the Si-II 635.5nm absorption is about 10300 km/s. The Asiago classification spectra are posted at this website: URL http://graspa.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).