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| Second Braking Index of Intermittent Pulsar and Nulling Pulsar | |
Rusul, A.1; Zheng, X. P.2; Esamdin, A.3 ; Guo, L.1
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| 2020-03-01 | |
| Source Publication | Publications of the Astronomical Society of the Pacific
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| ISSN | 0004-6280 |
| Volume | 132Issue:1009Pages:34201 |
| Contribution Rank | 3 |
| Abstract | 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. |
| Keyword | pulsars: general-pulsars individual (PSR B1931+24)-stars neutron Astronomy & Astrophysics |
| Subtype | Article |
| DOI | 10.1088/1538-3873/ab6715 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000520183700001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4054 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Zheng, X. P. |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Rusul-2020-Second Br（417KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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