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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
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
EISSN1538-4357
Volume813Issue:2Pages:91
Corresponding Author张双南
SubtypeArticle
AbstractWe 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.
Keywordaccretion, accretion disks stars: magnetic field stars: neutron X-rays: binaries
Subject AreaAstronomy & Astrophysics
DOI10.1088/0004-637X/813/2/91
Indexed BySCI ; INSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000365288900011
ADS Bibcode2015ApJ...813...91S
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015ApJ...813...91S
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015ApJ...813...91S/citations
inspireid1394125
inspireURLhttps://inspirehep.net/literature/1394125
Citation statistics
Cited Times:14 [INSPIRE]
Cited Times:18 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228812
Collection粒子天体物理中心
Recommended Citation
GB/T 7714
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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