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Asiago spectroscopic classification of CSS140609:173103+203632

ATel #6222; L. Tomasella, S. Benetti, E. Cappellaro, A. Pastorello, N. Elias-Rosa, P. Ochner, M. Turatto (INAF Osservatorio Astronomico di Padova)
on 10 Jun 2014; 01:57 UT
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)

Subjects: Optical, Supernovae

We report that an optical spectrogram of CSS140609:173103+203632 (range 340-820 nm; resolution 1.3 nm), obtained on June 10.02 UT with the Asiago 182cm Copernico Telescope (+AFOSC), under the Asiago Transient Classification Program (Tomasella et al. 2014, posted at http://arxiv.org/abs/1403.7233 ), shows that this is a type Ia supernova. A good match is found with several type Ia SNe at redshift about 0.05 and near maximum light. An expansion velocity of 9300 km/s is derived from the minimum of the Si II 635-nm line.

The Asiago classification spectrum is posted at the website 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