论文标题
原始黑洞作为暗物质候选者的强烈镜头限制
Strong lensing constraints on primordial black holes as a dark matter candidate
论文作者
论文摘要
暗物质可能至少部分构成原始黑洞（PBH）。为了检验这一假设，我们提出了一种方法，可以从Quadruply Im Imaged Quasars的磁量比中限制PBH质量（$ M _ {\ rm {pbh}} $）和质量分数（$ f _ {\ rm {pbh}} $）。我们的方法使用近似贝叶斯计算（ABC）向前建模技术来直接采样$ m _ {\ rm {pbh}} $和$ f _ {\ rm {pbh}} $的后验分布，同时在子荷兰质量弹药弹能振幅，空间分布和lensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed sensed。我们将我们的方法应用于11个四量成像的类星体，并对PBH参数空间的中间质量区域获得了新的约束，$ 10^4 $ M $ _ {\ odot} <m _ {\ rm {\ rm {pbh}} <10^6 $ m $ m $ _ \ odot $。我们获得了一个上限$ f _ {\ mathrm {pbh}} <0.17 $（95 \％c.l.）。该约束独立于所有先前发布的限制。
Dark matter could comprise, at least in part, primordial black holes (PBH). To test this hypothesis, we present an approach to constrain the PBH mass ($M_{\rm{PBH}}$) and mass fraction ($f_{\rm{PBH}}$) from the flux ratios of quadruply imaged quasars. Our approach uses an approximate Bayesian computation (ABC) forward modeling technique to directly sample the posterior distribution of $M_{\rm{PBH}}$ and $f_{\rm{PBH}}$, while marginalizing over the subhalo mass function amplitude, spatial distribution, and the size of the lensed source. We apply our method to 11 quadruply-imaged quasars and derive a new constraint on the intermediate-mass area of PBH parameter space $10^4 $M$_{\odot}<M_{\rm{PBH}}<10^6$M$_\odot$. We obtain an upper limit $f_{\mathrm{PBH}}<0.17$ (95\% C.L.). This constraint is independent of all other previously published limits.
