Institutional Repository of Radio Astronomy Research Laboratory
| 脉冲星PSR J1906+0746射电辐射束的观测特征及其启示 | |
| Alternative Title | Observational Properties of Radio Emission Beams of PSR J1906 + 0746 and Its Implication |
黄文俊1; 黄秀健2; 温志刚3 ; 王洪光1,3
| |
| 2020-10-01 | |
| Source Publication | 天文研究与技术
 |
| ISSN | 1672-7673 |
| Volume | 17Issue:4Pages:419-428 |
| Contribution Rank | 3 |
| Abstract | 本文利用公开数据研究了PSR J1906+0746的主脉冲和中间脉冲的辐射特征。通过对各段时期的平均脉冲轮廓进行高斯拟合，得到了对应的10%峰值脉冲宽度和峰值流量密度，进而研究了其与碰撞角之间的关系。结果表明主脉冲辐射束的主要可见部分可由一束有确定磁经度角范围的磁流管产生，而中间脉冲则来自于环绕磁轴的磁力线上的辐射。现有的扇形束模型可以较好的解释主脉冲的特征，但难以解释中间脉冲的辐射特征。中间脉冲的特征要求改进扇形束模型，在假设磁轴四周的磁力线均有辐射的情况下，通过合理选择模型参数来模拟观测到的条形辐射束。 |
| Other Abstract | In this paper, the properties of the main-pulse and interpulse radio emission beams werestudied for PSR J1906+0746 by using the open data. By fitting the integrated pulse profile of each epoch with Gaussian components we obtained the corresponding 10% peak pulse width and the peak flux density, and then analyzed the relationships between them and the impact angle. The results show that the major visible part of the emission beam of the main pulse is generated by a magnetic flux tube with a certain range of magnetic longitude while the emission of the interpulse comes from magnetic field lines around the magnetic axis. The properties of the main pulse can be well explained by the existing fan beam models, but the properties of the interpulse are difficult to interpret by the fan beam models, which requires the improvement of the fan beam model. Under the assumption that radio radiation can be generated along the magnetic field lines around the magnetie axis, the observed strip-shaped emission beam can be simulated by reasonable selection of the model parameters. |
| Keyword | 脉冲星 射电辐射 PSR J1906+0746 辐射束 |
| DOI | 10.14005/j.cnki.issn1672-7673.20200422.001 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:6827688 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4032 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Affiliation | 1.广州大学物理与电子工程学院，广东广州 5100062; 2.华中师苑大学物理科学与技术学院，湖北武汉 430079; 3.中国科学院新天文台，新疆乌鲁木齐 830011 |
| Recommended Citation GB/T 7714 | 黄文俊,黄秀健,温志刚,等. 脉冲星PSR J1906+0746射电辐射束的观测特征及其启示[J]. 天文研究与技术,2020,17(4):419-428. |
| APA | 黄文俊,黄秀健,温志刚,&王洪光.(2020).脉冲星PSR J1906+0746射电辐射束的观测特征及其启示.天文研究与技术,17(4),419-428. |
| MLA | 黄文俊,et al."脉冲星PSR J1906+0746射电辐射束的观测特征及其启示".天文研究与技术 17.4(2020):419-428. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 黄文俊-2020-脉冲星PSR J190（1165KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment