Institutional Repository of Radio Astronomy Research Laboratory
| A new method to analyse pulsar nulling phenomenon | |
Yang AiYuan1,2 ; Han JinLin3; Wang Na1
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| 2014-08-01 | |
| Source Publication | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| Volume | 57Issue:8Pages:1600-1606 |
| Contribution Rank | 1 |
| Abstract | Pulsar nulling is a phenomenon of sudden cessation of pulse emission for a number of periods. The nulling fraction was often used to characterize the phenomenon. We propose a new method to analyse pulsar nulling phenomenon, by involving two key parameters, the nulling degree chi, which is defined as the angle in a rectangular coordinates for the numbers of nulling periods and bursting periods, and the nulling scale, N, which is defined as the effective length of the consecutive nulling periods and bursting periods. The nulling degree chi can be calculated by tan chi = N-nulling/N-bursting and the mean is related to the nulling fraction, while the nulling scale, N, is also a newly defined fundamental parameter which indicates how often the nulling occurs. We determined the distributions of chi and N for 10 pulsars by using the data in literature. We found that the nulling degree chi indicates the relative length of nulling to that of bursting, and the nulling scale N is found to be related to the derivative of rotation frequency and hence the loss rate of rotational energy of pulsars. Their deviations reflect the randomness of the nulling process. |
| Keyword | Pulsars Radio Sources Radiation Mechanisms |
| Subtype | Article |
| DOI | 10.1007/s11433-014-5534-x |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RADIO-TELESCOPE ; PERIODIC NULLS ; DRIFT |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000339365800024 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/609 |
| Collection | 射电天文研究室_脉冲星研究团组 射电天文研究室 其它 |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yang AiYuan,Han JinLin,Wang Na. A new method to analyse pulsar nulling phenomenon[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2014,57(8):1600-1606. |
| APA | Yang AiYuan,Han JinLin,&Wang Na.(2014).A new method to analyse pulsar nulling phenomenon.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,57(8),1600-1606. |
| MLA | Yang AiYuan,et al."A new method to analyse pulsar nulling phenomenon".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 57.8(2014):1600-1606. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| A new method to anal（706KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-ND | View Application Full Text | |
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