anewmethodtoanalysepulsarnullingphenomenon
文献类型：期刊论文
| 作者 | Yang Aiyuan1; Han Jinlin2 ; Wang Na1
|
| 刊名 | sciencechinaphysicsmechanicsastronomy
 |
| 出版日期 | 2014 |
| 卷号 | 57期号:8页码:1600 |
| ISSN号 | 1674-7348 |
| 英文摘要 | 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, χ, 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 χ can be calculated by tan χ = 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 χ and N for 10 pulsars by using the data in literature. We found that the nulling degree χ 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. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/48405]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院新疆天文台 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Yang Aiyuan,Han Jinlin,Wang Na. anewmethodtoanalysepulsarnullingphenomenon[J]. sciencechinaphysicsmechanicsastronomy,2014,57(8):1600. |
| APA | Yang Aiyuan,Han Jinlin,&Wang Na.(2014).anewmethodtoanalysepulsarnullingphenomenon.sciencechinaphysicsmechanicsastronomy,57(8),1600. |
| MLA | Yang Aiyuan,et al."anewmethodtoanalysepulsarnullingphenomenon".sciencechinaphysicsmechanicsastronomy 57.8(2014):1600. |
入库方式： OAI收割
来源：国家天文台
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。