SN J14002117+3854517 discovered 2015/02/18.054 by Paolo Campaner in the galaxy NGC 5406 on behalf of Italian Supernovae Search Project (type II - mv +18,2).
Asiago spectroscopic observation of PSN J14002117+3854517 in NGC 5406
ATel #7107; P. Ochner, S. Benetti, A. Pastorello, E. Cappellaro, N. Elias-Rosa, L. Tartaglia, G. Terreran, L. Tomasella, M. Turatto, S. Zaggia (INAF - Osservatorio Astronomico di Padova); F. Patat (ESO)
on 19 Feb 2015; 08:44 UT
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic observation of PSN J14002117+3854517 in NGC 5406. The observation was performed with the Asiago 1.82m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.4 nm), equipped with the CCD Andor IKON L936.
Name | Date (UT) | z | Type | Phase | PSN J14002117+3854517 | 20150219.07 | 0.01735 | SN II | ~ 2 weeks |
The spectrum shows a relatively blue continuum, dominated by the Balmer lines with P-Cygni profiles typical of type II SNe about two weeks after explosion. From the H-alpha minimum an expansion velocity of about 5600 km/s is deduced, once the host galaxy redshift has been taken into account (z=0.01735, RC3, via NED)
Classification was done with GELATO (Harutyunyan et al. 2008, A&A, 488, 383) and SNID (Blondin and Tonry 2007, ApJ, 666, 1024). The Asiago classification spectra are posted at the website http://sngroup.oapd.inaf.it.