| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
Although Yonetoku relation for GRB (Gamma Ray Burst) has been thought to be applied only for Long GRB, we found that it holds also for Short GRB. The correlation coefficient and the chance probability of this new relation are 0.98 and one part of hundred thousand, respectively. Applying this new correlation to bright 72 SGRBs detected by BATSE, the birth rate of SGRB near the earth is found to be one event/Mpc cubic per year. SGRB is one of the most plausible gravitational wave sources for Japanese KAGRA, LIGO and Virgo. From this event rate of SGRBs, we expect at least 4 gravitational events per year in the pessimistic case while 600 events per year in the optimistic case. Therefore gravitational wave might be observed in 2015 for the earliest case.
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