论文标题
寻找天空中的相对论轴
Searching for relativistic axions in the sky
论文作者
论文摘要
$ {\ Mathcal O}产生的相对轴（10^{ - 7} -10^{ - 2} $ $ \ $ \ text {ev}）$ dark Matter（dm）在穿越银河系磁场后部分转换为光子，从而引起了Square Kilome Array Array Array Array Array Telesscope的信号，从而引起信号。我们表明，对于比几个$ \ times $ $ 10^{ - 13} $ ev较轻的轴，对当地矮人的ska观察100 h，我会探测不受恒星冷却和宇宙学观察的限制的探测参数空间，敏感性比计划的专用轴轴探测的敏感性要好几个数量级。我们量化了SKA灵敏度投影的不确定性，这是由于两种效果增强了无线电通量的影响：银河系内的湍流磁场的存在，以及DM衰变的玻色增强到轴上，尤其是后者保证进一步研究。
Relativistic axions produced in decays of ${\mathcal O}(10^{-7}-10^{-2}$ $\text{eV})$ dark matter (DM) partially convert to photons after traversing the galactic magnetic field, giving rise to a signal observable by the Square Kilometer Array (SKA) radio telescope. We show that for axions lighter than a few $\times$ $10^{-13}$ eV a 100 h SKA observation of the local dwarf galaxy Seg I would probe parameter space not constrained by stellar cooling and cosmological observations, with sensitivity several orders of magnitude better than the planned dedicated axion dark matter search experiments. We quantify the uncertainties in the SKA sensitivity projections due to two effects that enhance the radio flux: the presence of turbulent magnetic fields inside the galaxy, and the Bose enhancement of the DM decays to axions, where the latter, in particular, warrants further study.
