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arXiv 1302.7255astro-ph.HE
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确定两个Z源的中子星表面磁场强度

Determining the neutron star surface magnetic field strength of two Z sources

Guoqiang Ding, Chunping Huang, Yanan Wang

摘要:

根据盘运动的极端位置,我们推断了Z源GX 17+2和Cyg X-2的中子星表面磁场强度B_0。GX 17+2和CygX-2的B_0值分别为~(1-5)× 10^8G和~(1- 3)× 10^8G},不亚于毫秒X射线源或环礁源。Z源的NS磁轴可能平行于旋转轴,这可能导致这些源中缺乏脉动。

英文摘要:

From the extreme position of disk motion, we infer the neutron star (NS) surface magnetic field strength B_0 of Z-source GX 17+2 and Cyg X-2. The inferred B_0 of GX 17+2 and Cyg X-2 are ~(1-5)X10^8 G and ~(1--3)X10^8 G}, respectively, which are not inferior to that of millisecond X-ray pulsars or atoll sources. It is likely that the NS magnetic axis of Z sources is parallel to the axis of rotation, which could result in the lack of pulsations in these sources.

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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