Hatena::Groupkanatatmp

KANATA ObsLog

2009-07-17

[] SN 2009dd : Update

f:id:kanataobslog:20090717181316p:image

We report the preliminary light curve of Type IIP SN 2009dd. The magnitude calibrated using the nearby comparison star in the same field. The magnitude of the comparison star is from USNO catalogue. The object still seems to be in plateau phase. But we do not conclude whether the fluctuation of 0.2~0.3mag is real. The calibrated magnitude was influenced by the luminous component of the host galactic nuclei. The more detailed photometric (e.g. host-subtracted method) analysis will be necessary.