一三星系统经黑洞整合后的残余物生成超级行星

A hypervelocity star appears to be the remains¹ of a three-star system, one star of which was digested by the Milky² Way's black hole, with the other two being combined and hurled³ away.

Here’s what scientists think happened, oh, about a hundred million years ago. There was this three-star system. The three linked stars were strolling through the Milky Way but got too close to the giant black hole at the center. The hole swallowed one of those stars and hurled away the other two. Those two careening stars merged⁴ to form one super-hot, incredibly fast-moving blue star, which is now on the very outskirts⁵ of the Milky Way.

And here’s how scientists came up with that dramatic tale, which they just published in Astrophysicial Journal Letters.

They discovered what they call a hypervelocity star, which moves three times faster than our sun does through the galaxy⁶. According to new information provided by the Hubble telescope, the star originated deep within the Milky Way.

The scientists used the Hubble to figure out the direction of the star’s travels and the distance from the galactic center, along with the star’s mass, age and speed. Its unusual attributes give rise to the idea that one star was swallowed and transferred its momentum⁷ to the other two, which transformed into a blue superstar. Hurtling through the galaxy, faster than a speeding sun
 

1 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

2 milky   

adj.牛奶的，多奶的；乳白色的

参考例句：

• Alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
• I like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。

3 hurled   

v.猛投，用力掷( hurl的过去式和过去分词 )；大声叫骂

参考例句：

• He hurled a brick through the window. 他往窗户里扔了块砖。
• The strong wind hurled down bits of the roof. 大风把屋顶的瓦片刮了下来。 来自《简明英汉词典》

4 merged   

（使）混合( merge的过去式和过去分词 )； 相融； 融入； 渐渐消失在某物中

参考例句：

• Turf wars are inevitable when two departments are merged. 两个部门合并时总免不了争争权限。
• The small shops were merged into a large market. 那些小商店合并成为一个大商场。

5 outskirts   

n.郊外，郊区

参考例句：

• Our car broke down on the outskirts of the city.我们的汽车在市郊出了故障。
• They mostly live on the outskirts of a town.他们大多住在近郊。

6 galaxy   

n.星系；银河系；一群(杰出或著名的人物)

参考例句：

• The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。
• The company has a galaxy of talent.该公司拥有一批优秀的人才。

7 momentum   

n.动力，冲力，势头；动量

参考例句：

• We exploit the energy and momentum conservation laws in this way.我们就是这样利用能量和动量守恒定律的。
• The law of momentum conservation could supplant Newton's third law.动量守恒定律可以取代牛顿第三定律。