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SUPER STRONG MAGNETIC FIELDS OF NEUTRON STARS IN BE X-RAY BINARIES ESTIMATED WITH NEW TORQUE AND MAGNETOSPHERE MODELS
Shi, CS; Zhang SN(张双南); Zhang, SN; Li, XD
2015
发表期刊ASTROPHYSICAL JOURNAL
卷号813期号:2页码:91
通讯作者张双南
文章类型Article
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.
关键词accretion, accretion disks stars: magnetic field stars: neutron X-rays: binaries
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/813/2/91
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000365288900011
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228812
专题粒子天体物理中心
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Shi, CS,Zhang SN,Zhang, SN,et al. 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):91.
APA Shi, CS,张双南,Zhang, SN,&Li, XD.(2015).SUPER STRONG MAGNETIC FIELDS OF NEUTRON STARS IN BE X-RAY BINARIES ESTIMATED WITH NEW TORQUE AND MAGNETOSPHERE MODELS.ASTROPHYSICAL JOURNAL,813(2),91.
MLA Shi, CS,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):91.
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