Hatena::Groupkanatatmp

KANATA ObsLog

2009-05-12

[] SN 2009dc : Update

f:id:kanataobslog:20090512230415p:image

We update the light curve of Peculiar Type Ia SN 2009dc.

[] J1509-21: the outburst finished

f:id:kanataobslog:20090512143033p:image

We confirmed that the fading from the outburst finished and the object has returned to the quiescent state.

blazar BL Lac : Update the data

f:id:kanataobslog:20090512140554p:image

The figure shows the light curve in V band and the V-J color variation of the object. The object has recently been faded and the V-J color became redder.

blazar PKS 1510-089 : Optical flaring !

f:id:kanataobslog:20090512135656p:image

The object has recently been bright since JD 2454900. In JD 2454960, the object has an exceptional flare with a rising of a polarization degree. This figure shows the light curve and temporal variation of the polarization degree of the object in V band. The brightness reached about V~13.3. The peak of the polarization degree anticipated that of the brightness. The polarization degree reached about 37%.