但是除了我们略知一二的更遥远背景星系以外，这张深空图像也提示了一个罕见的盒状内晕，在星系多尘的盘面之上和之下伸展到很远。
But along with a smattering of more distant background galaxies, the deep image also reveals a curious box-shaped inner halo extending far above and below this galaxy's dusty plane.
计算机模拟显示银河晕中的恒星起源于更古老星系的相互碰撞和撕裂产物。
Computer simulations show that stars of the Milky Way's halo originated in older galaxies torn apart by collisions.
科学家们补充说，星系的暗物质晕可能会影响到星系自身的演化过程并决定星系的形态——椭圆状或者是涡旋状。
The behavior of a galaxy's dark matter halo could affect its evolution and help determine whether it becomes a spiral or an elliptical, they added.
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