Measuring neutron star mass and radius with three mass–radius relations
Measuring neutron star mass and radius with three mass–radius relations
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DOI：
10.1111/j.1365-2966.2006.11133.x
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发表时间：
2006-11
影响因子：
4.8
通讯作者：
C. Zhang;H. Yin;Y. Kojima;H. -. Chang;R. Xu;X. D. Li;B. Zhang;B. Kiziltan
中科院分区：
文献类型：
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作者：
C. Zhang;H. Yin;Y. Kojima;H. -. Chang;R. Xu;X. D. Li;B. Zhang;B. Kiziltan
我们建议使用三种可测量的质量半径关系来确定中子星（NS）的质量和半径，即从中子星热发射推断出的“表观”半径，从吸收线推断出的引力红移，以及从千赫兹准周期振荡数据导出的轨道开普勒频率推断出的平均恒星质量密度。我们应用该方法来约束 X 射线源 1E 1207.4−5209、Aql X-1 和 EXO 0748−676 的 NS 质量和半径。
We propose to determine the mass and radius of a neutron star (NS) using three measurable mass‐radius relationships, namely the ‘apparent’ radius inferred from the NS thermal emission, the gravitational redshift inferred from the absorption lines, as well as the averaged stellar mass density inferred from the orbital Keplerian frequency derived from the kilohertz quasi-periodic oscillation data. We apply the method to constrain the NS mass and radius of the X-ray sources, 1E 1207.4−5209, Aql X-1 and EXO 0748−676.