论文标题
通过快速无线电爆发来测量电离需要什么
What it takes to measure Reionization with Fast Radio Bursts
论文作者
论文摘要
快速无线电爆发（FRB）最近被发现是半乳酸的无线电瞬变，现在用作新型宇宙学探针。我们展示了爆发的分散度度量如何独立于探测氢回离的历史。使用Flexknot自由形式的参数化来重建电离历史，我们预测CMB光学深度的精度有11％的精度约束，而在电源中点的中点上有4％的精度，可以使用100个FRB来实现，该FRB源自RedShifts Z> 5。
Fast Radio Bursts (FRBs) are recently discovered extra-galactic radio transients which are now used as novel cosmological probes. We show how the Bursts' Dispersion Measure can model-independently probe the history of Hydrogen reionization. Using a FlexKnot free-form parameterization to reconstruct the reionization history we predict an 11% accuracy constraint on the CMB optical depth, and 4% accuracy on the midpoint of reionization, to be achieved with 100 FRBs originating from redshifts z>5.
