论文标题
shapiro延迟psr〜j1811 $ - $ 2405
Shapiro delay in PSR~J1811$-$2405
论文作者
论文摘要
本文介绍了从二元毫秒Pulsar PSR J1811-2405中首次检测到shapiro延迟。我们报告了一个11- $σ$的矫高度幅度测量，h $ _3 $ = 6.8（6）x10 $^{ - 7} $，以及16- $σ$的正形比率测量，$ pen $ = $ = 0.81（5）。给定相对较高的轨道倾斜度，i = 79（2）度，这是该二进制系统的，我们获得了M $ _C $ = 0.31 $ \ setack的伴随质量的约束， PULSAR质量当前的约束程度不高，值为2.0 $ \ setack {+0.8 \\ -0.5} m_ \ odot $。伴侣质量和轨道周期与紧凑型二元系统进化的先前数值计算所做的预测一致。从对极化的研究中，我们发现轨道倾斜角度为〜100度，PSR J1811-2405是正交旋转器。此外，$μ$ S级的时序精度及其狭窄轮廓使PSR J1811-2405成为包含在用于检测NHz重力波的PULSAR时正时阵列中的良好候选者。
This paper presents the first detection of Shapiro delay from the binary millisecond pulsar PSR J1811-2405. We report a 11-$σ$ measurement of the orthometric amplitude, h$_3$=6.8(6)x10$^{-7}$, and a 16-$σ$ measurement of the orthometric ratio, $ς$= 0.81(5). Given the relatively high orbital inclination, i= 79(2) deg, of this binary system, we obtain constraints on the companion mass of m$_c$= 0.31$\substack{+0.08 \\ -0.06}M_\odot$. The pulsar mass is currently less well constrained, with a value of 2.0$\substack{+0.8 \\ -0.5}M_\odot$. The companion mass and the orbital period are in agreement with the prediction made by previous numerical calculations of the evolution of compact binary systems. From a study of the polarization, we find that the orbital inclination angle is ~100 deg and that PSR J1811-2405 is an orthogonal rotator. In addition, the $μ$s-level timing precision together with its narrow profile make PSR J1811-2405 a good candidate for inclusion in the pulsar timing arrays being used to detect nHz Gravitational waves.
