Asiago spectroscopic classification of ASASSN-15db
ATel #7089; P. Ochner, A. Pastorello, S. Benetti, E. Cappellaro, N. Elias-Rosa, L. Tartaglia, G. Terreran, L. Tomasella, M. Turatto (INAF - Osservatorio Astronomico di Padova)
on 17 Feb 2015; 14:09 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Enrico Cappellaro (email@example.com)
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic
observation of ASASSN-15db in NGC 5996. 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 |
ASASSN-15db | 20150217.09 | 0.010998 | SN Ia | -5 days |
We confirm the spectroscopic classification reported in ATEL #7086, with ASASSN-15db being a normal
Type Ia SN a few days before the maximum light.
From the position of the minimum of the Si II 635.5 nm feature, we infer a velocity of about 10900 km/s
for the ejected material.
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.