Hatena::Groupkanatatmp

KANATA ObsLog

2009-01-07

[]S2 0109+224 : update the data

f:id:kanataobslog:20090108010709p:image

We update the data of S2 0109+224. The V-J color has been bluer since JD 2454824.

[]3C 454.3 : update the data

f:id:kanataobslog:20090108010612p:image

The figure shows the light curve and the polarization degree of the object in V band. The flux has decreased while the polarization degree keeps a low level.

[]1ES 1959+650 : detection of flare

f:id:kanataobslog:20090107070458p:image

The figure shows the light curve and the polarization degree of the object in V band. We detect a small flare which has amplitude of 0.3mag. but the polarization degree does not correlate with a flare.

[]3C 66A : update the data

f:id:kanataobslog:20090107070325p:image

We update the data of 3C 66A. The flux and the polarization degree show oscillations superimposed on a gradualy decreasing trend. The correalation between the flux and the polarization degree is not clear.

[]Mrk 421 : the light curve and the polarization

f:id:kanataobslog:20090107070206p:image

The figure shows the light curve and the polarization degree of Mrk 421 in V band. The object does not has high polarization degree.

[]OJ 49 : the light curve and the polarization

f:id:kanataobslog:20090107070042p:image

The figure shows the light curve and the polarization degree of OJ 49 in V band. The flux has decreased but the polarization degree has increased.

[]ON 231 : the light curve and the polarization

f:id:kanataobslog:20090107065908p:image

We are monitoring of ON 231. The figure shows the light curve and the polarization degree.

[]ON 325 : update the data

f:id:kanataobslog:20090107065741p:image

We update the data of ON 325. The amplitudes of the flux and the polarization degree have recently been small.

[]3C 273 : the light curve and the polarization degree in V band

f:id:kanataobslog:20090107060113j:image

We have observed 3C 273 since 11 Dec 2008.

This object has very low polarization degree.