| Statistical properties of high-energy radiation from young pulsars | |
Jiang, ZJ1; Zhang L(张力)1,2 ; Jiang, ZJ (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Yunnan, Peoples R China.
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2006-06-01 | |
| 卷号 | 643期号:2页码:1130-1138 |
| DOI | 10.1086/502963 |
| 产权排序 | 第2完成单位 |
| 收录类别 | SCI |
| 关键词 | Gamma Rays : Theory Pulsars : General Stars : Neutron Stars : Statistics |
| 摘要 | We study the statistical properties of young pulsars with ages of <= 10(6) yr using the Monte Carlo method on the frame of a revised outer gap model. In our simulations, we first compare the simulated radio-loud pulsars with the observed ones in the ATNF Pulsar Catalogue, in which nine radio surveys are included. On the basis of consistency between the simulated and the observed young pulsars, we further simulate possible gamma-ray pulsars based on our outer gap model. In this model, geometric effects have been taken into account, and the high-energy radiation of a pulsar depends on period (P), magnetic field (B), and magnetic inclination angle (alpha). We take the gamma-ray beaming selection effects into account and study the statistical properties of gamma-ray pulsars with energy fluxes above the detectable threshold fluxes. For the EGRET detector, we predict that there may be similar to 8 radio-loud and similar to 24 radio-quiet gamma-ray pulsars if we take the neutron star birthrate to be 1.5 per century. For GLAST, we expect similar to 78 and similar to 740 radio-loud and radio-quiet gamma-ray pulsars. Most of the young gamma-ray pulsars are concentrated at the Galactic plane. We compared the energy fluxes of the simulated gamma-ray pulsars with those of low-latitude unidentified EGRET gamma-ray sources, indicating that the majority of these unidentified sources have pulsar origin. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000238338700043 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY PULSARS ; RAPIDLY SPINNING PULSARS ; UNIDENTIFIED EGRET SOURCES ; VARIABILITY ANALYSIS ; OUTER MAGNETOSPHERE ; POWERED PULSARS ; RADIO PULSARS ; GAPS ; EVOLUTION ; LUMINOSITY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4203 |
| 专题 | 其他 |
| 通讯作者 | Jiang, ZJ (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Yunnan, Peoples R China. |
| 作者单位 | 1.Department of Physics, Yunnan University, Kunming, Yunnan 650091, China 2.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China |
| 推荐引用方式 GB/T 7714 | Jiang, ZJ,Zhang L,Jiang, ZJ . Statistical properties of high-energy radiation from young pulsars[J]. ASTROPHYSICAL JOURNAL,2006,643(2):1130-1138. |
| APA | Jiang, ZJ,Zhang L,&Jiang, ZJ .(2006).Statistical properties of high-energy radiation from young pulsars.ASTROPHYSICAL JOURNAL,643(2),1130-1138. |
| MLA | Jiang, ZJ,et al."Statistical properties of high-energy radiation from young pulsars".ASTROPHYSICAL JOURNAL 643.2(2006):1130-1138. |
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| Statistical Properti（575KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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