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| A Monte Carlo study of the evolution of the scale height of normal pulsars in the Galaxy | |
Wei, YC1 ; Wu, XJ1,2; Peng, QH3; Wang, N1; Zhang, J1
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| 2005 | |
| Source Publication | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1009-9271 |
| Volume | 5Issue:6Pages:610-618 |
| Contribution Rank | 1 |
| Abstract | Based on the undisturbed, finite thickness disk gravitational potential, we carried out 3-D Monte Carlo simulations of normal pulsars. We find that their scale height evolves in a similar way for different velocity dispersions (sigma(nu)): it first increases linearly with time, reaches a peak, then gradually decreases, and finally approaches a stable asymptotic value. The initial velocity dispersion has a very large influence on the scale height. The time evolution of the scale height is studied. When the magnetic decay age is used as the time variable, the observed scale height has a similar trend as the simulated results in the linear stage, from which we derive velocity dispersions in the range 70 similar to 178 km s(-1), which are near the statistical result of 90 similar to 270 km s(-1) for 92 pulsars with known transverse velocities. If the characteristic age is used as the time variable, then the observed and theoretical curves roughly agree for t > 10(8) yr only if sigma(nu) < 25 km s(-1). |
| Keyword | Pulsar : General Stars : Evolution Galaxy : Structure Galaxy : Disk |
| Subtype | Article |
| Subject Area | 致密天体、高能和基础物理 |
| WOS Headings | Science & Technology ; Physical Sciences |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RADIO PULSARS ; SUPERNOVA-REMNANTS ; POPULATION ; INCLINATION ; VELOCITIES ; MOTIONS |
| Funding Project | 脉冲星研究团组 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000234124400007 |
| Funding Organization | 国家自然科学基金 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/103 |
| Collection | 射电天文研究室_脉冲星研究团组 中国科学院新疆天文台 研究生学位论文 其它 |
| Corresponding Author | Wu, XJ |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, Urumqi Observ, Urumqi 830011, Peoples R China 2.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 3.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wei, YC,Wu, XJ,Peng, QH,et al. A Monte Carlo study of the evolution of the scale height of normal pulsars in the Galaxy[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2005,5(6):610-618. |
| APA | Wei, YC,Wu, XJ,Peng, QH,Wang, N,&Zhang, J.(2005).A Monte Carlo study of the evolution of the scale height of normal pulsars in the Galaxy.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,5(6),610-618. |
| MLA | Wei, YC,et al."A Monte Carlo study of the evolution of the scale height of normal pulsars in the Galaxy".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 5.6(2005):610-618. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| A Monte Carlo Study （159KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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