The Different Distribution of Gaussian Components between Mainpulse and Interpulse in Pulsar Radio Profiles
文献类型：期刊论文
| 作者 | Han XH(韩晓红)2 ; Rai, YUEN1,2,3
|
| 刊名 | 天文学报
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 63期号:3页码:43-57 |
| 关键词 | 辐射机制:非热 脉冲星:普通 方法:分析 |
| ISSN号 | 0001-5245 |
| DOI | 10.15940/j.cnki.0001-5245.2022.03.004 |
| 其他题名 | 脉冲星射电轮廓中高斯成分在主脉冲和中间脉冲的不同分布 |
| 产权排序 | 1 |
| 英文摘要 | The arrangement of Gaussian emission components along a trajectory traced by a visible point moving at non-uniform speed as the pulsar rotates is investigated.By assuming emission locations confined to spots that arranged evenly around the magnetic axis,a Gaussian emission component corresponds to a cut of an emission spot by the trajectory.The distribution of the emission spots,and hence the Gaussian components,are uneven along the trajectory,being highest around the nearest approach of the magnetic axis to the line of sight,and dependent on two angles of a pulsar:the viewing angle,between the rotation axis and the line of sight,and the obliquity angle,between the magnetic and rotation axes.Observed multiple Gaussian components in a profile then corresponds to several emission spots locating on the trajectory within a specific range of pulsar phase.Demonstration is given to show that the number and distribution of the Gaussian components are different between ranges around the near and far sides of pulsar rotation,corresponding to the mainpulse and interpulse,respectively.The total number of emission spots on a trajectory may be different from that around the magnetic axis,and ignoring the motion of the visible point can lead to significant discrepancy in the predicted number of emission spots.The shape and number of the Gaussian components for fitting a profile may be different from that of the actual components that compose the profile.As an example,the model is applied to the emission arrangement in PSR B0826-34 by assuming the emission comes from a single pole. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| CSCD记录号 | CSCD:7233171 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5088]  |
| 专题 | 脉冲星研究团组 |
| 作者单位 | 1.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210023; 2.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011; 3.School of Physics, University of Sydney, Sydney NSW 2006 |
| 推荐引用方式 GB/T 7714 | Han XH,Rai, YUEN. The Different Distribution of Gaussian Components between Mainpulse and Interpulse in Pulsar Radio Profiles[J]. 天文学报,2022,63(3):43-57. |
| APA | 韩晓红,&Rai, YUEN.(2022).The Different Distribution of Gaussian Components between Mainpulse and Interpulse in Pulsar Radio Profiles.天文学报,63(3),43-57. |
| MLA | 韩晓红,et al."The Different Distribution of Gaussian Components between Mainpulse and Interpulse in Pulsar Radio Profiles".天文学报 63.3(2022):43-57. |
入库方式： OAI收割
来源：新疆天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。