To get a better grasp of the size and distribution of material in this disc, astronomers used XMM-Newton to search for X-rays emitted by iron atoms.

• 为了获得一个更好的了解旋盘中物质的分布及尺寸情况的机会，天文学家使用XMM-牛顿来搜寻铁原子发射出的X射线。