gebhardt

"They´re essentially the tip of the iceberg," Gebhardt says of the objects so far observed.

“他们本质上是冰山的一角，”葛布哈特评论那些被观察到的遥远的物体。

"It´s the most accurate mass estimate ever obtained" for a supermassive black hole, says Gebhardt.

“对于超级黑洞，这是所得到的最为精确的估算，”格布·哈特说。

Stellar motions in the core of the giant galaxy do indeed suggest that it may have experienced a black hole merger in the not-too-distant past, says Gebhardt.

格布哈特说，在这个巨大星系的中心，恒星的运动的确说明，在不太遥远的过去该星系有可能经历过一次吞并黑洞的事件。

Gebhardt has data in hand from a ground-based survey of star motions in about 15 other Milky Way clusters, most of them easier to study than the crowded heart of M15.

吉布·哈特手中有地面观测的其他15个球状星团中恒星运动的数据资料，其中大部分的核心没有M 15那么稠密。

The measurements are about 10 times better than previous observations, largely because of telescope enhancements that compensate for distortions in Earth´s atmosphere, Gebhardt added.

这次获得的结果大约是以前观察的10倍，而Gebhardt 表示其原因主要是由于望远镜精度的提高补偿了地球大气层对光线的扭曲。