论文标题
模糊重力镜头的多个图像和磁通比异常
Multiple Images and Flux Ratio Anomaly of Fuzzy Gravitational Lenses
论文作者
论文摘要
极轻的玻色波浪暗物质（$ψ$ dm）是一位新兴的暗物质候选人，竞争传统的冷暗物质范式，并且最近对最近进行了严格审查。这项工作首次报告可测试的显着特征，与$ψ$ dm光晕的重力镜头有关。 $ψ$ dm的光环清楚地充满了$Δρ/ρ_ {\ rm halo} \ sim 1 $以密度颗粒的形式的大幅度，小尺寸的密度波动。该光晕产生的无处不在的通量比率为几百分之几，通常针对镜头类星体，并且可能会为位于定义明确的速度区域中的来源产生稀有的六十体和八达图像。当光环在非常紧凑的巨大核心附近具有足够高的表面密度时，我们发现在高度去磁性镜头中心出现了新的关键特征。
Extremely light bosonic wave dark matter ($ψ$DM) is an emerging dark matter candidate contesting the conventional cold dark matter paradigm and a model subject to intense scrutiny of late. This work for the first time reports testable salient features pertinent to gravitational lenses of $ψ$DM halos. $ψ$DM halos are distinctly filled with large-amplitude, small-scale density fluctuations with $δρ/ρ_{\rm halo}\sim 1$ in form of density granules. This halo yields ubiquitous flux ratio anomalies of a few tens of percent, as is typically found for lensed quasars, and may also produce rare hexad and octad images, for sources located in well-defined caustic zones. We have found new critical features appearing in the highly de-magnified lens center when the halo has sufficiently high surface density near a very compact massive core.
