Hatena::Groupkanatatmp

KANATA ObsLog

2010-01-19

[] Type Ia SN 2009ig : update

f:id:kanataobslog:20100119224512p:image

We have performed the extensive photometric observations of Type Ia SN 2009ig. The light curves are compared to a very normal SN Ia 2005cf (Wang et al. 2009) and an extremely luminous SN Ia 2009dc (Yamanaka et al. 2009). The B-band light curve clearly shows an excess from that of a normal SN Ia. The luminosity obtained in B-band even reached that of the extremely luminous SN 2009dc. On the other hand, light curve of V, R, I-bands indicate that the luminosity rather become similar to those of normal SN Ia 2005cf than those of SN 2009dc. We will perform observations of the peculiar SN Ia 2009ig until an observation limit of this season.