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| The role of magnetic damping in the r-mode evolution of accreting neutron stars | |
Cao GuoJie1,2 ; Zhou Xia1,3; Wang Na1,3
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| 2015-03-01 | |
| Source Publication | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| Volume | 58Issue:3Pages:039502 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | Neutron Stars R-mode Instability Differential Rotation Gravitational Waves |
| Subtype | Article |
| DOI | 10.1007/s11433-014-5573-3 |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | X-RAY ; INSTABILITY ; RADIATION ; ROTATION |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000349813600013 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/626 |
| Collection | 射电天文研究室_脉冲星研究团组 射电天文研究室 其它 |
| Affiliation | 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 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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):039502. |
| 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),039502. |
| 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):039502. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| art%3A10.1007%2Fs114（712KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-ND | View Application Full Text | |
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