Asiago classification of ASASSN-15tn as a Type Ia SN
ATel #8381; L. Tomasella, A. Pastorello, S. Benetti, E. Cappellaro, N. Elias-Rosa, P. Ochner, L. Tartaglia, G. Terreran, M. Turatto (INAF Osservatorio Astronomico di Padova)
on 7 Dec 2015; 18:45 UT
Credential Certification: Lina Tomasella (firstname.lastname@example.org)
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification
of ASASSN-15tn discovered by All Sky Automated Survey for SuperNovae (ASAS-SN) in CGCG 496-51 (Atel#8376).
Information on this transient is available from the "Bright Supernova" website (http://www.rochesterastronomy.org/snimages/).
The observation was performed with the Asiago 1.82 m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.4 nm).
Name | Discovery UT | Obs. Date UT |z | Type | Phase |Notes
ASASSN-15tn | 20151206.280 | 20151207.71 |0.03 | Ia | ~max | (1)
(1) Best match with several normal Type-Ia SNe, around maximum light.
The expansion velocity, as deduced from the position of the minimum of the Si II 635 nm line, is about 12000 km/s.
Classification were 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.
Padova Asiago SN group