Asiago spectroscopic classification of PSN J02490078+1544058 = SNhunt271 as a type II SN
ATel #6848; L. Tommasella, P. Ochner,, S. Benetti, E. Cappellaro, N. Elias-Rosa, A. Pastorello, G. Terreran, M. Turatto (INAF Osservatorio Astronomico di Padova)
on 24 Dec 2014; 09:33 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Enrico Cappellaro (firstname.lastname@example.org)
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic observation of PSN J02490078+1544058 = SNhunt271. Target was supplied by the CBAT Transient Objects Confirmation Page (TOCP). The observation was performed with the Asiago 1.82 m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.2 nm), which was equipped with a new CCD (Andor IKON L936) with higher response both in the UV and in the NIR.
|Name || | Date (UT) || | z || | Type || | Phase || | Notes |
|PSN J02490078+1544058 || | 20141223.88 || | 0.021 || | SN II || | pre-max || | (*) |
* The red continuum indicates significant reddening.
A good match is found with the type-II SN 1999em (Elmhandi et al. 2003, MNRAS 338, 939) 3 days before B-band maximum light and assuming an E(B-V)~0.8 mag. The expansion velocity, as deduced from the minimum of the P-Cyg profile of H_alpha, is around 13400 km/s.
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.