标题： 极端质量比旋进中探测恒星质量原初黑洞的前景与连续引力波 显示英文标题

标题： Prospects for detecting asteroid-mass primordial black holes in extreme-mass-ratio inspirals with continuous gravitational waves

摘要： 尽管经过数十年的研究，天体质量原初黑洞（PBHs）的存在仍然几乎完全未被约束，因此它们仍可能构成暗物质（DM）的全部。 在本文中，我们表明，对连续引力波的常规搜索——长期存在、准单色信号——可以利用未来爱因斯坦望远镜（ET）和中子星极端物质观测站（NEMO）的引力波（GW）数据检测围绕恒星级伴星运行的天体质量PBH的极端质量比旋入现象。 我们评估了我们的预期约束 against 二进制系统的偏心率、主天体质量的选择以及我们分析的GW频率范围的鲁棒性。 此外，为了确定是否有可能使用当前的GW数据检测天体质量PBHs，我们量化了当前技术变化对向天体质量PBHs敏感度的影响。 我们表明，允许随时间增加和更复杂频率漂移的信号的方法现在可以获得比标准技术得出的更严格的约束，尽管计算成本稍高，但可能用当前探测器将某些天体质量PBHs可能组成的暗物质比例限制在小于1。 显示英文摘要

摘要： Despite decades of research, the existence of asteroid-mass primordial black holes (PBHs) remains almost completely unconstrained and thus could still comprise the totality of dark matter (DM). In this paper, we show that standard searches for continuous gravitational waves -- long-lived, quasi-monochromatic signals -- could detect extreme mass-ratio inspirals of asteroid-mass PBHs in orbit around a stellar-mass companion using future gravitational-wave (GW) data from Einstein Telescope (ET) and the Neutron Star Extreme Matter Observatory (NEMO). We evaluate the robustness of our projected constraints against the eccentricity of the binary, the choice of the mass of the primary object, and the GW frequency range that we analyze. Furthermore, to determine whether there could be ways to detect asteroid-mass PBHs using current GW data, we quantify the impact of changes in current techniques on the sensitivity towards asteroid-mass PBHs. We show that methods that allow for signals with increased and more complicated frequency drifts over time could obtain much more stringent constraints now than those derived from standard techniques, though at slightly larger computational cost, potentially constraining the fraction of DM that certain asteroid-mass PBHs could compose to be less than one with current detectors.