Resonant jumps induced by stationary tidal perturbation: a two-for-one deal
Resonant jumps induced by stationary tidal perturbation: a two-for-one deal
复制标题
静止潮汐扰动引起的共振跳跃：二合一交易
DOI：
10.1088/1361-6382/aca1a3
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发表时间：
2022
影响因子：
3.5
通讯作者：
Tanaka Takahiro
中科院分区：
文献类型：
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作者：
Gupta Priti;Kakehi Takafumi;Tanaka Takahiro
极端质量比螺旋 (EMRI) 是 LISA、太极和天琴等天基干涉仪的有前途的目标源。根据天体物理环境，例如近距离扰动体或吸积盘，电磁磁共振成像轨道演化可能会偏离真空中广义相对论的预测。我们特别关注共振跳跃，即由对背景克尔几何的平稳扰动引起的守恒量的变化。使用哈密顿公式，我们提供了卡特常数的跳跃与角动量的轴向分量的跳跃之间的密切关系。实验结果还表明，所得到的关系式与前人工作中计算的潮汐共振拟合公式是一致的。
Extreme-mass-ratio inspirals (EMRIs) are promising target sources for space-based interferometers such as LISA, Taiji, and Tianqin. Depending on the astrophysical environment, such as close perturbers or an accretion disk, EMRI orbital evolution may deviate from the predictions of general relativity in vacuum. In particular, we focus on the resonance jumps, ie the changes of the conserved quantities induced by a stationary perturbation to the background Kerr geometry. Using Hamiltonian formulation, we provide a closed relation between the jump in Carter constant and that in the axial component of angular momentum. It is also shown that the obtained relation is consistent with the fitting formulae computed for the tidal resonance in previous works.
DOI：
10.1136/ebmh.11.4.102
发表时间：
2008-10
期刊：
Evidence Based Mental Health
影响因子：
--
作者：
P. Cochat;L. Vaucoret;J. Sarles
通讯作者：
P. Cochat;L. Vaucoret;J. Sarles