| Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2013: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
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| Outline of Final Research Achievements |
We investigate the origin of cosmic magnetic fields and their influence on structure formation in the universe. What we have done are, (1) Evaluate magnetic fields generated from the vector mode perturbations and constrain models from observations. We especially focus on Einstein-aether theory, which is one of modified gravity theories, and topological defects such as global texture and cosmic string. (2) First time thoroughly calculate magnetic field generation due to second order perturbations and find resultant magnetic fields can be a seed of cosmic magnetic fields. (3) Evaluate cosmic magnetic fields generated by radiation emitted from active galactic nuclei’s in the early universe.
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