Hatena::Groupkanatatmp

KANATA ObsLog

2011-10-19

[] Optical Transient in UGC 5460 : Ks-band Observations

f:id:kanataobslog:20111019063142p:image

We performed Ks-band photometric observations on Oct. 18 using new optical and near-infrared camera "HONIR (Hiroshima Optical and Near-Infrared Camera)" in its tentative observations. The preliminary magnitude was estimated to be 13.9 +/- 0.1 mag. This indicates that the near-infrared excess does not strongly occur in the ejected material. We will observations in optical and near-infrared wavelengths.

2011-10-18

[] Optical Transient in UGC 5460 : still rising !!

f:id:kanataobslog:20111018191614p:image

We update the light curves of the optical transient in UGC 5460. The apparent brightness reached around 15 mag in Rc-band filter. This indicates that the absolute magnitude of this ibject reached -16 mag. This value is luminous than that of Eta Carina in the most luminous phase.

2011-10-13

[] Optical Transient in UGC 5460 : still rising !

f:id:kanataobslog:20111014061648p:image

We update the light curve of the optical transient in UGC5640. This object is still brightening !

2011-10-11

[] Optical Transient in UGC 5460 : still rising

f:id:kanataobslog:20111012000755p:image

We update the light curves of the optical transient in UGC5460.

[] Type Ia SN 2011ek : update

f:id:kanataobslog:20111011224253p:image

We update the light curve of Type Ia SN 2011ek.

2011-10-10

[] Optical Transient in UGC 5460 : still rising

f:id:kanataobslog:20111010204923p:image

We update the light curves of the optical transient in UGC 5460.