论文标题
从第三星的世俗偏心变化中揭示隐藏的黑洞二进制
Uncovering a hidden black hole binary from secular eccentricity variations of a tertiary star
论文作者
论文摘要
我们研究了几乎共面系统中的黑洞二进制（BHB）周围绕绕的太阳能型星的动力学。我们提出了一种新颖的效果，该效果可以促使当系统遇到“ apsidal prepession resonance”时，恒星轨道的偏心率的生长和显着振荡，其中外部恒星轨道的Apsidal进液速率与内BHB的内部轨道匹配。偏心率激发要求内部二进制具有非零的偏心率和不平等的质量，并且甚至可以在非旋转三元组中创建。我们表明，由不断变化的偏心率引起的恒星轨道的启示剂的世俗变异性可以通过\ textit {gaia}可以检测到。检测有利于BHB在激光干涉仪空间天线（LISA）的频带中发射重力波，因此在银河系中提供了独特的，多通信的探测器。
We study the dynamics of a solar-type star orbiting around a black hole binary (BHB) in a nearly coplanar system. We present a novel effect that can prompt a growth and significant oscillations of the eccentricity of the stellar orbit when the system encounters an "apsidal precession resonance", where the apsidal precession rate of the outer stellar orbit matches that of the inner BHB. The eccentricity excitation requires the inner binary to have a non-zero eccentricity and unequal masses, and can be created even in non-coplanar triples. We show that the secular variability of the stellar orbit's apocenter, induced by the changing eccentricity, could be potentially detectable by \textit{Gaia}. Detection is favorable for BHBs emitting gravitational waves in the frequency band of the Laser Interferometer Space Antenna (LISA), hence providing a distinctive, multi-messenger probe on the existence of stellar-mass BHBs in the Milky Way.
