The Sun seen with neutrinos

Update in June 2017

data set :
total live time 5200 days (May 1996 - March 2016)
SK-I (1496 days), SK-II (791 days), SK-III (548 days), SK-IV (2365 days)
6.5-19.5MeV (kinetic energy)

The Sun is placed at the center:
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jpeg file

The Sun is followed by the equatorial coordinate:

The yellow part shows there are many events from that direction. It is firstly shown that neutrinos are really coming from the direction of the Sun in Kamiokande experiment. This plot is made from the observation data of Super-Kamiokande.

(written by Yusuke Koshio)