论文标题
来自小行星质量原始黑洞暗物质的重力波信号
Gravitation Wave signal from Asteroid mass Primordial Black Hole Dark Matter
论文作者
论文摘要
质量范围$ \ sim 10^{17} -10^{22} $ G中的原始黑洞（PBHS）当前不受限制，并且可以构成宇宙的完整暗物质（DM）密度。在当前的工作中，我们旨在将上述质量范围内的PBH的存在与即将到来的GW检测器中可观察到的引力波（GWS）的生产联系起来。我们遵循一种相对独立的方法，假设PBH在辐射中占据主导的时代，这是由于增强的原始曲率扰动在通货膨胀产生的小尺度上。我们表明，来自CMB和BAO数据的约束允许PBH是宇宙的整个DM密度的可能性。最后，我们得出了通过增强的曲率扰动引起的GW光谱，并表明它们在将来的GW探测器（如ELISA，BBO和DECIGO）中被检测到。
Primordial Black Holes (PBHs) in the mass range $\sim 10^{17}- 10^{22}$g are currently unconstrained, and can constitute the full Dark Matter (DM) density of the universe. Motivated by this, in the current work, we aim to relate the existence of PBHs in the said mass range to the production of observable Gravitational Waves (GWs) in the upcoming GW detectors. We follow a relatively model-independent approach assuming that the PBHs took birth in a radiation dominated era from enhanced primordial curvature perturbation at small scales produced by inflation. We show that the constraints from CMB and BAO data allow for the possibility of PBHs being the whole of DM density of the universe. Finally, we derive the GW spectrum induced by the enhanced curvature perturbations and show that they are detectable in the future GW detectors like eLISA, BBO and DECIGO.
