Probing evolution of binaries influenced by the spin–orbit resonances

Probing evolution of binaries influenced by the spin–orbit resonances
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探测受自旋轨道共振影响的双星演化

DOI:
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
A. Gopakumar
A. Gopakumar
中科院分区:
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文献类型:
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作者:
A. Gupta;A. Gopakumar

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我们在与总角动量的初始方向J0相关的惯性系中演化了孤立的质量相当的自旋紧凑双星,经历了Schnittman的后牛顿自旋-轨道共振。我们认为,准确测量两个自旋的初始取向和来自J0的轨道角动量的引力波(GW)应该允许我们区分两种可能的自旋-轨道共振。因此,这些测量有可能为可能的双星形成情景提供直接的观测证据。当GW干涉仪可检测到双星时,上述陈述也应适用于不留在共振面中的双星。共振面的特征是涉及两个自旋和轨道角动量的标量三重积的消失,它自然出现在Schnittman发现的单参数平衡解家族中。我们开发了一个处方来计算驻留在这些共振构型中的双星的时间域激发模板,并探索它们的初步数据分析结果。
We evolve isolated comparable mass spinning compact binaries experiencing Schnittman’s post-Newtonian spin–orbit resonances in an inertial frame associated with j0, the initial direction of the total angular momentum. We argue that accurate gravitational wave (GW) measurements of the initial orientations of the two spins and orbital angular momentum from j0 should allow us to distinguish between the two possible families of spin–orbit resonances. Therefore, these measurements have the potential to provide direct observational evidence of possible binary formation scenarios. The above statements should also apply for binaries that do not remain in a resonant plane when they become detectable by GW interferometers. The resonant plane, characterized by the vanishing scalar triple product involving the two spins and the orbital angular momentum, naturally appears in the one parameter family of equilibrium solutions, discovered by Schnittman. We develop a prescription to compute the time-domain inspiral templates for binaries residing in these resonant configurations and explore their preliminary data analysis consequences.
DOI: 10.1002/andp.201200271
发表时间: 2013-02
期刊: Annalen der Physik
影响因子: 2.4
作者:
J. Hartung;J. Steinhoff;G. Schäfer
通讯作者: J. Hartung;J. Steinhoff;G. Schäfer
DOI: 10.1088/0264-9381/29/12/124016
发表时间: 2012-06-21
影响因子: 3.5
作者:
Amaro-Seoane, Pau;Aoudia, Sofiane;Ward, Henry
通讯作者: Ward, Henry