论文标题
与QCD轴线微量簇的中子星遇到的瞬态无线电签名
Transient Radio Signatures from Neutron Star Encounters with QCD Axion Miniclusters
论文作者
论文摘要
如果Peccei-Quinn对称性在膨胀后破裂，则预计QCD轴是形成称为轴微量簇的致密结构。一直存活到今天的微量簇将以银河系的方式与中子恒星（NSS）相互作用，以从NS磁层中的Axion-Photon转换产生瞬时无线电信号。我们量化了这些相遇的属性，并发现它们经常发生（$ \ Mathcal {o}（1-100）\，\ Mathrm {day}^{ - 1} $）;在一天到几个月之间持续持续；在空间上聚集在银河中心；并可以达到可观察的通量。这些无线电瞬态已接触到当前一代望远镜，因此为发现QCD轴轴线暗物质提供了有希望的途径。
The QCD axion is expected to form dense structures known as axion miniclusters if the Peccei-Quinn symmetry is broken after inflation. Miniclusters that have survived until today will interact with neutron stars (NSs) in the Milky Way to produce transient radio signals from axion-photon conversion in the NS magnetosphere. We quantify the properties of these encounters and find that they occur frequently ($\mathcal{O}(1-100)\,\mathrm{day}^{-1}$); last between a day and a few months; are spatially clustered towards the Galactic center; and can reach observable fluxes. These radio transients are within reach of current generation telescopes and therefore offer a promising pathway to discovering QCD axion dark matter.
