Black hole 'hurled out of galaxy'黑洞'投掷出星系

红色圆圈表示在一个黑洞可能

A supermassive black hole may have been observed in the process of being hurled from its parent galaxy at high speed.一个超大黑洞可能被观察的过程中被从父母星系高速投掷。

The finding comes from analysis of data collected by the US Chandra space X-ray observatory.这一发现来自于美国钱德拉太空X射线观测站收集的数据进行分析。

However, there are alternative explanations for the observation.但是，也有其他解释的观测。

The work, by an international team of astronomers, has been published in the journal Monthly Notices of the Royal Astronomical Society.由一个国际天文学家小组的工作，已发表在杂志上的皇家天文学会每月通告。

Normally, each galaxy contains a supermassive black hole at its centre.通常，每个星系包含在其中心超大质量的黑洞。

Given that these objects can have masses equivalent to one billion Suns, it takes a special set of conditions to cause this to happen.鉴于这些对象可以有群众相等于1亿个太阳，它需要一套特殊的条件导致这种情况发生。

High-speed exit
 
高速出口
 
The authors believe this could be the result of the merger of two smaller black holes.作者认为这可能是两个较小的黑洞合并的结果。

But there are alternative explanations for the bright X-ray source; it could also be a Type IIn supernova, or an ultra-luminous X-ray source (ULX) with an optical counterpart (which could represent several phenomena).但也有对光明的X射线源的替代解释，这也可能是超新星型智能化信息网络，或超明亮X射线源的光学对应（可能代表几个现象（ULX））。

Simulations using supercomputers suggest that when this happens, the larger black hole that results is shot away at high speed.使用超级计算机模拟表明，当发生这种情况，大黑洞，结果是在高速拍摄距离。

 Black holes may be expelled from their host galaxies after mergers 黑洞可能会被驱逐出星系合并后，其主机
However, this depends on the direction and velocity at which the two black holes are rotating before their collision.但是，这取决于方向和速度在这两个黑洞碰撞前的旋转。

Marianne Heida of the University of Utrecht used data in the Chandra Source Catalogue to compare hundreds of thousands of sources of X-rays with the positions of millions of galaxies.玛丽安娜的乌得勒支大学海达用于钱德拉源目录数据比较的数百万星系的位置的X射线源的几十万。

The material that falls into black holes heats up dramatically on its final journey, which often means that black holes are strong X-ray sources.该材料说成黑洞急剧下降加热就其最后一程，这通常意味着该黑洞强大的X射线源。

X-rays are also able to penetrate the dust and gas that obscures the centre of a galaxy, giving astronomers a clear view of the region around the black hole, with the bright source appearing as a star-like point. X射线还可以穿透尘埃和气体，掩盖了一个星系的中心，让天文学家对黑洞周围的地区清除查看与光明作为一个明星般的出现点源。

Looking at one galaxy in the Catalogue, Ms Heida noticed that the point of light was offset from the centre and yet was so bright that it could be associated with a supermassive black hole.在目录中的一个星系来看，她海达注意到，光点从中心偏移，但它是如此明亮，可与黑洞有关。

Ms Heida said: "We have found many more objects in this strange class of X-ray sources. With Chandra we should be able to make the accurate measurements we need to pinpoint them more precisely and identify their nature."海达女士说：“我们发现在这个X射线源类很多奇怪的物体。随着钱德拉我们应该能够使我们需要针对他们更准确地确定其性质的准确测量。”