We present an analysis of Murchison Widefield Array radio telescope data from $\omega$ Cen, possibly a stripped dwarf spheroidal galaxy core captured by our Galaxy. Recent interpretations of Fermi-LAT $\gamma$-ray data by Brown et al. (2019) and Reynoso-Cordova et al. (2019) suggest that $\omega$ Cen may contain significant Dark Matter. We utilize their best-fit Dark Matter annihilation models, and an estimate of the magnetic field strength in $\omega$ Cen, to calculate the expected radio synchrotron signal from annihilation, and show that one can usefully rule out significant parts of the magnetic field–diffusion coefficient plane using our current observational limits on the radio emission. Improvement by a factor of 10–100 on these limits could constrain the models even more tightly.

我们对来自以下地区的Murchison广域阵列射电望远镜数据进行分析 $\omega$岑，可能是我们的银河系捕获的一个剥夺的矮球状星系核心。Fermi-LAT的最新解释$\gamma$布朗等人的射线数据。（2019）和Reynoso-Cordova等人。（2019）建议$\omega$岑可能包含大量暗物质。我们利用他们最适合的暗物质an灭模型，以及对$\omega$Cen，用于计算从an灭中获得的预期无线电同步加速器信号，并表明可以利用我们当前对无线电发射的观察极限，有用地排除磁场扩散系数平面的重要部分。在这些限制上提高10-100倍，可能会更加严格地限制模型。