SUPER STRONG MAGNETIC FIELDS OF NEUTRON STARS IN BE X-RAY BINARIES ESTIMATED WITH NEW TORQUE AND MAGNETOSPHERE MODELS
文献类型：期刊论文
| 作者 | Shi, Chang-Sheng1,2,3 ; Zhang, Shuang-Nan1,4; Li, Xiang-Dong3,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2015-11-10 |
| 卷号 | 813期号:2 |
| 关键词 | accretion, accretion disks stars: magnetic field stars: neutron X-rays: binaries |
| 英文摘要 | We re-estimate the surface magnetic fields of neutron stars (NSs) in Be X-ray binaries (BeXBs) with different models of torque, improved beyond Klus et al. In particular, a new torque model is applied to three models of magnetosphere radius. Unlike the previous models, the new torque model does not lead to divergent results for any fastness. parameter. The inferred surface magnetic fields of these NSs for the two compressed. magnetosphere models are much higher than that for the uncompressed magnetosphere model. The new torque model using the compressed. magnetosphere radius leads to unique solutions near spin equilibrium in all cases, unlike other models that usually give two branches of solutions. Although our conclusions are still affected by the simplistic assumptions about the magnetosphere radius calculations, we show several groups of possible surface magnetic field values with our new models when the interaction between the magnetosphere and the infalling accretion plasma is considered. The estimated surface magnetic fields for NSs BeXBs in the Large Magellanic Cloud, the Small Magellanic Cloud and the Milk Way are between the quantum critical field and the maximum "virial" value by the spin equilibrium condition. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365288900011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5533]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Hainan Univ, Coll Mat Sci & Chem Engn, Haikou 570228, Hainan, Peoples R China 3.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 5.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Chang-Sheng,Zhang, Shuang-Nan,Li, Xiang-Dong. SUPER STRONG MAGNETIC FIELDS OF NEUTRON STARS IN BE X-RAY BINARIES ESTIMATED WITH NEW TORQUE AND MAGNETOSPHERE MODELS[J]. ASTROPHYSICAL JOURNAL,2015,813(2). |
| APA | Shi, Chang-Sheng,Zhang, Shuang-Nan,&Li, Xiang-Dong.(2015).SUPER STRONG MAGNETIC FIELDS OF NEUTRON STARS IN BE X-RAY BINARIES ESTIMATED WITH NEW TORQUE AND MAGNETOSPHERE MODELS.ASTROPHYSICAL JOURNAL,813(2). |
| MLA | Shi, Chang-Sheng,et al."SUPER STRONG MAGNETIC FIELDS OF NEUTRON STARS IN BE X-RAY BINARIES ESTIMATED WITH NEW TORQUE AND MAGNETOSPHERE MODELS".ASTROPHYSICAL JOURNAL 813.2(2015). |
入库方式： OAI收割
来源：国家天文台
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