The role of magnetic damping in the r-mode evolution of accreting neutron stars
文献类型：期刊论文
| 作者 | Cao GuoJie1,2 ; Zhou Xia1,3; Wang Na1,3
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2015-03-01 |
| 卷号 | 58期号:3 |
| 关键词 | neutron stars r-mode instability differential rotation gravitational waves |
| 英文摘要 | The magnetic damping rate was introduced in the evolution equations of r-modes, which shows that r-modes can generate strong toroidal magnetic fields in the core of accreting millisecond pulsars inducing by differential rotation. With consideration of the coupling evolution of r-modes, spin and thermal evolution, we investigated the influence of the magnetic damping on the differential rotation of nonlinear r-modes of accreting neutron stars. We derived the coupling evolution equations of the star involving the magnetic damping rate in the framework of second-order r-mode theory. The numerical results show that the magnetic damping suppressed the nonlinear evolution of r-modes since the saturation amplitude is reduced to a great extent. In particular, because of the presence of the generated toroidal magnetic field, the spin-down of the stars is terminated and the viscous heating effects are also weakened. Moreover, we could obtain a stronger generated toroidal magnetic field in the second-order r-mode theory. The gravitational radiation may be detected by the advanced laser interferometer detector LIGO if the amount of differential rotation is small when the r-mode instability becomes active and the accretion rate is not very high. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | X-RAY ; INSTABILITY ; RADIATION ; ROTATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349813600013 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/626]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 新疆天文台_其它 |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao GuoJie,Zhou Xia,Wang Na. The role of magnetic damping in the r-mode evolution of accreting neutron stars[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2015,58(3). |
| APA | Cao GuoJie,Zhou Xia,&Wang Na.(2015).The role of magnetic damping in the r-mode evolution of accreting neutron stars.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,58(3). |
| MLA | Cao GuoJie,et al."The role of magnetic damping in the r-mode evolution of accreting neutron stars".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 58.3(2015). |
入库方式： OAI收割
来源：新疆天文台
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