Padova-Asiago Supernova Group
Asiago Classification Program
MASTER OT J044212.20+230616.7 in PGC 1681539   Discovered by: MASTER
Object type   SN   IIn
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Reference:   ATEL6488  

The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of MASTER OT J044212.20+230616.7 in PGC 1681539 (ATel #6484). The observation was performed with the Asiago 1.82 m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.2 nm). Name | Date (UT) | z | Type | Phase | Notes MASTER OT J044212.20+230616.7 | 20140923.08 | 0.016 | IIn/Ia-CSM | +60 d | The spectrum is very similar to that of the type IIn/Ia-CSM SN 2005gj at about 2 month after maximum. The only remarkable difference is a broad and strong P-Cygni feature consistent with NaID/He I 587.6nm. The emission component, having a FWHM~9500 km/s, largely overwhelms the blue-shifted shallow absorption. Classification was done with GELATO (Harutyunyan et al. 2008, A&A, 488, 383). The Asiago classification spectra are posted at the website http://sngroup.oapd.inaf.it.