C92 - Valdicerro Observatory
Update SN in NGC6956... class Ia
PSN J20435314+1230304
Atel #7796 (Asiago spectroscopic classification extract)
Spectroscopic classification of three SNe at Asiago
ATel #7796; L. Tomasella, S. Benetti, E. Cappellaro, N. Elias-Rosa, P. Ochner, A. Pastorello, L. Tartaglia, G. Terreran, M. Turatto (INAF OAPd)
on 14 Jul 2015; 07:21 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Enrico Cappellaro (
enrico.cappellaro@oapd.inaf.it)
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of... PSN J20435314+1230304 discovered in NGC6956 by Massimo Caimmi (Italian Supernova Search Program ISSP). Informations on these transients are available from the "Bright Supernova" website (
http://www.rochesterastronomy.org/snimages/) and and the CBAT "Transient Objects Confirmation Page" (
http://www.cbat.eps.harvard.edu/unconf/tocp.html). The observations were performed with the Asiago 1.82 m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.4 nm).
Name | Date (UT) | z | Type | Phase | Notes
....
PSN J20435314+1230304 | 20150714.01 | 0.0155 | Ia | before max | (3)
...
(3) Best match with several Type Ia SNe few days before maximum B-band light. The expansion velocity of the ejected material, as inferred from the position of the absorption of the SiII 6355 \AA, is about 13000 km/s.
Classifications 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
http://www.astronomerstelegram.org/?read=7796