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arXiv 1601.04006astro-ph.HEastro-ph.SR
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中子星及其磁场的演化

Evolutions of Neutron Stars and their Magnetic Fields

G. S. Bisnovatyi-Kogan

摘要:

本文讨论了作为射电和X射线天体观测的中子星的磁场的估算。结果表明,不同类型无线电脉冲星的理论值和观测值具有良好的对应性。密近双星和毫秒双星中的无线电脉冲星,已经过了吸积阶段(再循环无线电脉冲星),其磁场比普通的单双星小2-4个数量级。最有可能的是,中子星的磁场被下落的物质屏蔽了。几个筛选模型被认为是。讨论了单个回收粒子失去其同伴的形成过程。本文从回旋加速器线能量估算了某些X射线源的磁场。在Her X-1的情况下,这一估计大大超过了它的磁场的值从长期观测数据获得的有关束流结构的演变。另一种基于相对论偶极辐射机制的对回旋加速器特征的解释可以消除这种差异。对软伽马重复源的观测数据及其磁星解释进行了批判性分析。

英文摘要:

Estimations of magnetic fields of neutron stars, observed as radio and X-ray pulsars, are discussed. It is shown, that theoretical and observational values for different types of radiopulsars are in good correspondence. Radiopulsars in close binaries and millisecond pulsars, which have passed the stage of disk accretion (recycled radiopulsars), have magnetic fields 2-4 orders of magnitude smaller than ordinary single pulsars. Most probably, the magnetic field of the neutron star was screened by the infalling material. Several screening models are considered. Formation of single recycled pulsars loosing its companion is discussed. Magnetic fields of some X-ray pulsars are estimated from the cyclotron line energy. In the case of Her X-1 this estimation exceeds considerably the value of its magnetic field obtained from long term observational data related to the beam structure evolution. Another interpretation of the cyclotron feature, based on the relativistic dipole radiation mechanism, could remove this discrepancy. Observational data about soft gamma repeaters and their interpretation as magnetars are critically analyzed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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