2017 Fiscal Year Final Research Report
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
|
| Keywords | 宇宙物理 / 中性子星 / 磁気圏 / 相対論 |
|---|
| 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.
|
| Free Research Field |
宇宙物理
|
