标题： 与看不见的伙伴共舞：原初黑洞的三体交换 显示英文标题

标题： Dancing with invisible partners: Three-body exchanges with primordial black holes

摘要： 原始黑洞的丰度在过去曾受到动力学探测的限制。 由于这些天体可以参与硬的三体或少数体散射过程，它们能够轻易地向恒星系统传递能量，并且尤其能够破坏宽距离双星系统。然而，破坏并不是此类少数体过程的唯一可能结果。 原始黑洞也可能参与交换过程，在这种过程中，双星系统的一个成员被弹出并被黑洞本身所取代。在这种情况下，双星系统中剩下的那个天体会动态地表现为有一个不可见的伴星。 我们研究了作为暗物质组分的原始黑洞发生交换过程的速率，并评估了检测这些双星系统的可能机制。我们发现许多这样的双星系统很可能存在于太阳邻域，并表明这一过程可以解释那些性质与孤立双星演化预测相矛盾的观测到的双星系统。 显示英文摘要

摘要： The abundance of massive primordial black holes has historically been constrained by dynamical probes. Since these objects can participate in hard few-body scattering processes, they can readily transfer energy to stellar systems, and, in particular, can disrupt wide binaries. However, disruption is not the only possible outcome of such few-body processes. Primordial black holes could also participate in exchange processes, in which one component of a binary system is ejected and replaced by the black hole itself. In this case, the remaining object in the binary would dynamically appear to have an invisible companion. We study the rate of exchange processes for primordial black holes as a component of dark matter and evaluate possible mechanisms for detecting such binaries. We find that many such binaries plausibly exist in the Solar neighborhood, and show that this process can account for observed binary systems whose properties run counter to the predictions of isolated binary evolution.