2010 Fiscal Year Final Research Report
Origin of cosmic magnetic fields and its observational study
| Project/Area Number |
21840028
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Nagoya University |
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Principal Investigator |
TAKAHASHI Keitaro Nagoya University, 大学院・理学研究科, 特任助教 (80547547)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 宇宙物理 / 磁場 |
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| Research Abstract |
To investigate the origin of cosmic magnetic fields, I studied how we can measure intergalactic magnetic fields. I proposed a observational method which utilizes delayed gamma-rays from gamma-ray bursts and active galactic nuclei. As a result, it was shown that tiny intergalactic magnetic fields can be measured by observing delayed gamma-rays from bright gamma-ray bursts and flares of active galactic nuclei with ongoing gamma-ray telescopes such as Fermi and MAGIC.
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