| One-Dimensional Electric Field Structure of an Outer Gap Accelerator |
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| 作者姓名： | 陈世波 张力 |
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| 作者单位： | [1]Department of Physics, Yunnan University, Kunming 650031 [2]National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming 650011 |
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| 基金项目： | Supported by the Hundred Talents Programme of Ghinese Academy of Sciences, and the National Natural Science Foundation of Ghina under Grant Nos 10425314 and 10463002. |
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| 摘 要： | We re-study the one-dimensional electric field structure of an outer gap accelerator by considering the physical limit of trans-field height. Inside the outer gap, the charge depletion creates a large electric field along the magnetic field lines. Electrons and/or positrons are accelerated to ultra-relativistic energies by this longitudinal electric field, and then radiate γ-ray photons by curvature radiation. The collision of these γ-rays and ambient x-ray photons further produce radiating particles, resulting in a stationary gap. We solve the structure of this longitudinal electric field together with the distributions of electrons and positrons and γ-ray photons for an aligned rotator. Our results indicate that the outer gap can extend to the light cylinder using reasonable parameters.
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| 关 键 词： | 一维空间电场结构 外部间隙加速器 正电子 光子 |
| 收稿时间： | 2006-03-30 |
| 修稿时间： | 2006-03-30 |
One-Dimensional Electric Field Structure of an Outer Gap Accelerator |
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| CHEN Shi-Bo, ZHANG Li.One-Dimensional Electric Field Structure of an Outer Gap Accelerator[J].Chinese Physics Letters,2006,23(10):2881-2884. |
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| Authors: | CHEN Shi-Bo ZHANG Li |
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| Affiliation: | 1. Department of Physics, Yunnan University, Kunming 650031; 2.National Astronomical Obseryatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110 Kunming 650011 |
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