2011 Fiscal Year Final Research Report
Revealing Magnetars Based on Studies on Proton Cyclotron Absorption Line in Super-Strong Magnetic Field
| Project/Area Number |
21740207
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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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 | Waseda University (2011)
The Institute of Physical and Chemical Research (2009-2010) |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 宇宙物理(実験) |
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| Research Abstract |
I performed observational studies of higly magnetized neutron stars with～10^<15> G "Magnetars" using Japanese X-ray satellite Suzaku. In order to detect proton cyclotron resonance featrures and directly measure a magnetic field strength, I performed observations and analyses of three magnetars in active phases. Although I did not find any features in X-ray spectra, I discovered hard X-ray components in the X-ray spectra of weak bursts. In addition, I found a possibility that X-ray spectra in active phases are hader than those in quiet phases.
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