Hatena::Groupkanatatmp

KANATA ObsLog

2009-09-11

[] SN 2009ig : comparing with typical Ia SN 2005cf

f:id:kanataobslog:20090911233820p:image

We update the light curve of Type Ia SN 2009ig. We compared the light curve with those of SN 2005cf (Wang et al. 2009). The multi color light curve of two different SNe is well similar. Thus, we suggest that SN 2009ig is a typical SN Ia, although extremely high velocity line of SiII6355 is detected in very early phase (CBET 1918). Such a fact indicate that most of typical SNe Ia might have commonly a high velocity (> 20,000km/s) region in the outermost layer.