Padova-Asiago Supernova Group
Asiago Classification Program
2015az in IC 290   Discovered by: Gagliano, Post, Newton, Puckett
Object type   SN   Ia
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Reference:   CBET004208  ATEL8348  

The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of PSN J03094251+4058293 in UGC 2561.

Informations on this transient are available from CBAT Transient Object Followup Reports ( 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
PSN J03094251+4058293      | 20151130.31      | 20151130.99  |0.02    |  Ia      | pre-max    | (1) 

(1) Best match with several normal Type-Ia SNe, around 1 week before B-band maximum light. The expansion velocity, as deduced from the position of the minimum of the Si II 635 nm line, is about 13600 km/s. The redshift adopted for UGC 2561 is from Huchra et al. 1999, ApJS 121, 287.

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