possiblecontributionofmatureraypulsarstocosmicraypositrons
文献类型：期刊论文
| 作者 | QuanGui Gao1; ZeJun Jiang2; Li Zhang2 |
| 刊名 | chineseastronomyandastrophysics
 |
| 出版日期 | 2008 |
| 卷号 | 8期号:1页码:87 |
| ISSN号 | 0275-1062 |
| 英文摘要 | We restudy the possible contribution of mature gamma-ray pulsars to cosmic ray positrons based on the new version of outer gap model. In this model, the inclination angle and average properties of the outer gap are taken into account, and more mature pulsars can have the outer gap and emit high energy photons. Half of the primary particles in the outer gaps will flow back toward the star surface and emit synchrotron photons, which can produce electron/positron pairs by the cascade of pair production. Some of these pairs will escape from the light cylinder and be accelerated to relativistic energies in the pulsar wind driven by low-frequency electromagnetic waves. Using a Monte Carlo method, we obtain a sample of mature gamma-ray pulsars and then calculate the production of the positrons from these pulsars. The observed excess of cosmic positrons can be well explained by this model. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/38132]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院国家天文台 2.云南大学 |
| 推荐引用方式 GB/T 7714 | QuanGui Gao,ZeJun Jiang,Li Zhang. possiblecontributionofmatureraypulsarstocosmicraypositrons[J]. chineseastronomyandastrophysics,2008,8(1):87. |
| APA | QuanGui Gao,ZeJun Jiang,&Li Zhang.(2008).possiblecontributionofmatureraypulsarstocosmicraypositrons.chineseastronomyandastrophysics,8(1),87. |
| MLA | QuanGui Gao,et al."possiblecontributionofmatureraypulsarstocosmicraypositrons".chineseastronomyandastrophysics 8.1(2008):87. |
入库方式： OAI收割
来源：国家天文台
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