论文标题
通过宇宙镜头揭示原始黑孔的暗物质着装
Revealing Dark Matter Dress of Primordial Black Holes by Cosmological Lensing
论文作者
论文摘要
早期宇宙中的恒星质量原始黑洞（PBH）可以直接有助于Ligo观察到的重力波（GW）事件，但只能构成暗物质（DM）的亚diemination成分。主要的DM成分将在播种恒星质量PBHS周围通常形成大量的光晕。我们证明，宇宙学（$ \ gtrsim $ gpc）距离的重力镜头可以直接探索DM光晕连衣裙吞没PBHS，这对银河系附近的当地来源的镜头构成了挑战。通过Chime调查检测到的快速无线电爆发的强大镜头分析已经开始探测穿着的恒星质量PBHS的参数空间，即将进行的搜索可以有效地探索$ \ sim 10-10^5 m _ {\ odot} $ simange $ \ sim 10-10^5 m _ {\ odot} $群众的pbhs，并为PBH场景进行严格测试。我们的发现为具有恒星质量PBH的广泛的DM模型建立了一般测试，其中包括QCD轴或wIMP样颗粒构成主要的DM。结果为在宇宙学距离（例如超新星和苛刻的十字路口）探索带有各种镜头事件的穿着的PBH的新途径。
Stellar-mass primordial black holes (PBHs) from the early Universe can directly contribute to the gravitational wave (GW) events observed by LIGO, but can only comprise a subdominant component of the dark matter (DM). The primary DM constituent will generically form massive halos around seeding stellar-mass PBHs. We demonstrate that gravitational lensing of sources at cosmological ($\gtrsim$Gpc) distances can directly explore DM halo dresses engulfing PBHs, challenging for lensing of local sources in the vicinity of Milky Way. Strong lensing analysis of fast radio bursts detected by CHIME survey already starts to probe parameter space of dressed stellar-mass PBHs, and upcoming searches can efficiently explore dressed PBHs over $\sim 10-10^5 M_{\odot}$ mass-range and provide a stringent test of the PBH scenario for the GW events. Our findings establish a general test for a broad class of DM models with stellar-mass PBHs, including those where QCD axions or WIMP-like particles comprise predominant DM. The results open a new route for exploring dressed PBHs with various types of lensing events at cosmological distances, such as supernovae and caustic crossings.
