Second Braking Index of Intermittent Pulsar and Nulling Pulsar
文献类型：期刊论文
| 作者 | Rusul, A.1; Zheng, X. P.2; Esamdin, A.3 ; Guo, L.1
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| 刊名 | Publications of the Astronomical Society of the Pacific
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| 出版日期 | 2020-03-01 |
| 卷号 | 132期号:1009页码:34201 |
| 关键词 | pulsars: general-pulsars individual (PSR B1931+24)-stars neutron Astronomy & Astrophysics |
| ISSN号 | 0004-6280 |
| DOI | 10.1088/1538-3873/ab6715 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | The braking index parameter of intermittent pulsar would provide important insight into the pulsar slowdown and emission mechanism. In previous work, we presented the first braking index n = nu(nu) over dot/(nu) over dot(2) of the intermittent pulsar B1931+24, J1841-0500, J1832+0029 and nulling pulsar B0823+26, by using their observed spin frequency first derivatives (nu) over dot in "on" and "off" states. In this paper, to improve and justify our method for studying the braking mechanism of intermittent pulsars, we continue to formulate a method in which the second braking indices, m = nu(2)(nu) triple over dot/(nu) over dot(3), of these pulsars can also be given with only the observed spin frequency first derivatives (nu) over dot(on) and (nu) over dot(off). This paper will discuss, according to the emission and spin-down property of intermittent pulsars, three different magnetospheric configuration changes in the polar cap region. We find our approach produces feasible values of the second braking index of intermittent pulsar. Our calculations of the second braking indices are in close agreement with predicted second braking indices m = n(2n - 1), which are given by simple spin-down law of pulsar spin evolution, resulting in indirect observational support to our model. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000520183700001 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4054]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 |
| 通讯作者 | Zheng, X. P. |
| 作者单位 | 1.Institute of Physics and Electrical Engineering, Kashi University, Kashgar 844009, Peopleʼs Republic of China; 2.Institute of Astrophysics, Central China Normal University, Wuhan 430079, Peopleʼs Republic of China; 3.Xinjiang Astronomical Observatory, Chinese Academy of Science, Urumqi 830011, Peopleʼs Republic of China |
| 推荐引用方式 GB/T 7714 | Rusul, A.,Zheng, X. P.,Esamdin, A.,et al. Second Braking Index of Intermittent Pulsar and Nulling Pulsar[J]. Publications of the Astronomical Society of the Pacific,2020,132(1009):34201. |
| APA | Rusul, A.,Zheng, X. P.,Esamdin, A.,&Guo, L..(2020).Second Braking Index of Intermittent Pulsar and Nulling Pulsar.Publications of the Astronomical Society of the Pacific,132(1009),34201. |
| MLA | Rusul, A.,et al."Second Braking Index of Intermittent Pulsar and Nulling Pulsar".Publications of the Astronomical Society of the Pacific 132.1009(2020):34201. |
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来源：新疆天文台
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