| The Radial Structure of Pulsar Radio Emission Regions |
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| 作者姓名： | Xin-Ji Wu Zhan-Kui Huang and Xuan-Bin Xu |
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| 作者单位： | Xin-Ji Wu，Zhan-Kui Huang and Xuan-Bin Xu1 Department of Astronomy，Peking University，Beijing 1008712 The Chinese Academy of Sciences-Peking University Joint Beijing Astrophysics Center，Beijing 1008713 Urumqi Astronomical Observatory，National Astronomical Observatories，Chinese Academic of Science，Urumqi 830011 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grant 10073001. |
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| 摘 要： | An important paramter in the study of the radial structure of the pulsar radio emission region is the altitude of the emission,but this cannot be derived directly from the observations.The altitude can be expressed as a function of frequency,rν∝ν^-ξ,and the method of K analysis can be used to calculate the power law index ξfrom observations at different frequencies,We have calculated the value of ξ for 18 pulsars observed at two frequencies,610MHz and 1408MHz and for three pulsars observed at three or more frequencies,The average value of ξis 0.27,which indicates that the emission altitude increases with decreasing frequency and that the radial structure is compact.
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| 关 键 词： | 恒星 脉冲星 射电结构 |
The Radial Structure of Pulsar Radio Emission Regions |
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| Xin-Ji Wu,Zhan-Kui Huang and Xuan-Bin Xu.The Radial Structure of Pulsar Radio Emission Regions[J].Chinese Journal of Astronomy and Astrophysics,2002,2(5):454-462. |
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| Authors: | Xin-Ji Wu Zhan-Kui Huang Xuan-Bin Xu |
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| Institution: | [1]DepartmentofAstronomy,PekingUniversity,Beijing100871 [2]TheChineseAcademyofSciences-PekingUniversityJointBeijingAstrophysicsCenter,Beijing100871 |
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| Abstract: | |
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| Keywords: | stars: pulsars |
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