Structure and evolution of neutron stars from viewpoint of their global magnetic fields
Project/Area Number |
26400276
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
Research Institution | Hiroshima University |
Principal Investigator |
|
Research Collaborator |
OKAMOTO Satoki , 大学院生
|
Project Period (FY) |
2014-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | 宇宙物理 / 中性子星 / 磁気圏 / 相対論 / ブラックホール / 磁場 / 数値計算 |
Outline of Final Research Achievements |
It is thought that slow motion at the magnetar surface on a secular timescale twists its exterior magnetosphere, and a burst occurs when the state exceeds a threshold. A family of static solutions for the magnetosphere is studied. It is found that general relativistic effect importantly enhances the maximum magnetic energy stored in the magnetosphere. Formation of a magnetic flux rope plays a key role there. Black hole magnetosphere is also studied in term of two-fluid plasma model. The mechanism of out-going energy flux is demonstrated, but the amount decreases with plasma density.
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Report
(5 results)
Research Products
(20 results)