A possible mechanism for magnetar soft X-ray/γ-ray emission
文献类型：期刊论文
| 作者 | Gao Zhifu3; Peng Qiuhe2; Wang Na3; Chou Chihkang1 |
| 刊名 | 中国物理B：英文版
 |
| 出版日期 | 2012 |
| 卷号 | 21.0期号:005页码:057109 |
| ISSN号 | 1674-1056 |
| 关键词 | 射线辐射 软X射线 可能机制 Cooper对 高能中子 X射线观测 阈值能量 电子俘获 |
| 英文摘要 | Once the energies of electrons near the Fermi surface obviously exceed the threshold energy of the inverse β decay,electron capture（EC） dominates inside the magnetar.Since the maximal binding energy of the 3 P 2 neutron Cooper pair is only about 0.048 MeV,the outgoing high-energy neutrons（E k（n） 60 MeV） created by the EC can easily destroy the 3 P 2 neutron Cooper pairs through the interaction of nuclear force.In the anisotropic neutron superfluid,each 3 P 2 neutron Cooper pair has magnetic energy 2μ n B in the applied magnetic field B,where μ n = 0.966 × 10 23 erg.G 1 is the absolute value of the neutron abnormal magnetic moment.While being destroyed by the high-energy EC neutrons,the magnetic moments of the 3 P 2 Cooper pairs are no longer arranged in the paramagnetic direction,and the magnetic energy is released.This released energy can be transformed into thermal energy.Only a small fraction of the generated thermal energy is transported from the interior to the surface by conduction,and then it is radiated in the form of thermal photons from the surface.After highly efficient modulation within the star＇s magnetosphere,the thermal surface emission is shaped into a spectrum of soft X-rays/γ-rays with the observed characteristics of magnetars.By introducing related parameters,we calculate the theoretical luminosities of magnetars.The calculation results agree well with the observed parameters of magnetars. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/58057]  |
| 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.Department of Astronomy,Nanjing University 3.中国科学院新疆天文台 |
| 推荐引用方式 GB/T 7714 | Gao Zhifu,Peng Qiuhe,Wang Na,et al. A possible mechanism for magnetar soft X-ray/γ-ray emission[J]. 中国物理B：英文版,2012,21.0(005):057109. |
| APA | Gao Zhifu,Peng Qiuhe,Wang Na,&Chou Chihkang.(2012).A possible mechanism for magnetar soft X-ray/γ-ray emission.中国物理B：英文版,21.0(005),057109. |
| MLA | Gao Zhifu,et al."A possible mechanism for magnetar soft X-ray/γ-ray emission".中国物理B：英文版 21.0.005(2012):057109. |
入库方式： OAI收割
来源：国家天文台
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