If dark matter is made of axions, then you'd expect it to mostly be surrounding the subclusters themselves, because, like the galaxies, the clouds of dark matter axions would pass right through each other.

如果暗物质是由轴粒子构成的，那么你就会认为它大部分都围绕在亚星团周围，因为就像星系一样，由轴子组成的暗物质云会相互穿过对方。