科学美国人60秒:太空新发现,"黑洞三兄弟"畅游银河系
日期:2014-07-17 11:46

(单词翻译:单击)

5dB,#*VmastT=c4_8u]loTnMWD!QJScE[r|

中英文本

_RY2t_N(Solj=!


@,DnUb,6;i+4

This is Scientific American 60 Secomds, Space. I'm Clara Moskowitz, got a minute?

xliyb(lAdno)M+U,g

这里是科学美国人60秒,太空系列CjJ8H0ewx9jx+K@04pR。我是克拉拉·莫斯科维兹li!DSEB~,pZJcR&jM54

|j^5ir-xBv

Inside most galaxies a supermassive black hole lurks. But one galaxy about 4 billion light-years from us was recently discovered to have not one, not even two, but three gigantic black holes at its center.

NTEbVT*sJblwI(%

在大多数的银河系中都会隐藏着一个黑洞+k9]a8sr14C](HI。但是科学家竟然发现这个距离我们四百万光年的银河系的中央有多大三个黑洞nu]k5SNH%k7]&mROk]K

#,c7V*bbSDN6


0LNB8c17m1@

Such triple systems appear to be extremely rare—only four are known. The newfound system includes two black holes orbiting each other very closely, about 450 light-years apart, with a third black hole a bit farther out. The central pair zoom around each other at a fast clip, about 300 times the speed of sound on Earth. The hole trinity also represents the tightest trio of black holes known to date. It's described in thejournal Nature.

r^hzm[jpkPh

这种拥有三个黑洞的银河系十分少见,目前只发现了四个iKdwB8;,o!gDg。这三个黑洞中,有两个相距450光年的黑洞绕着彼此做旋转运动,另外一个则离这两个距离较远w-Am+w3M(S~E5;d2-7In。中心的这一对黑洞运动速度非常快,相当于声音在地球上传播速度的300倍sM9Dt;1#Hp*Hq]lON。按照已知的所有相关数据,这三个黑洞是距离彼此最紧密的xjFR0oQVZ4#ddk9][。详情请见自然杂志W5;w.@Vxr)uTI@K(&Mg

k&f_Ma_k_n

As these objects continue to orbit at the center of their galaxy, gravity will eventually pull them closerand closer together. Ultimately, they may even merge. Researchers hope this triple-black-hole system may be a good place to look for space-time ripples called gravitational waves. As their orbits shrink, the black holes should radiate away some of their orbital energy as the sought-after gravitational waves, predicted by Einstein a century ago.

EEjuLRlRy;4hCjr0

随着这三个黑洞不停地在银河系中旋转,引力会最终把它们拉的越来越近KdwmP1#zDcuzcE4。最终,它们很可能会合并成一体#8ySoT45D*0。研究人员希望在这个三个黑洞系统中,可以发现时光涟漪,专业上叫做重力波AxBWSevI8XBWhvVfe3k。伴随着这三个黑洞的旋转轨道的范围缩小,它们会释放桑出一定量的轨道能量,也就是人们向往看到的重力波,关于这一点,爱因斯坦早在一个世纪以前就提出过猜想%;3E=sr#OGj

%%Sc9U6Ok7j

Thanks for the minute for Scientific American 60 Secomds, Tech. I'm Clara Moskowitz.

pjy1k-;h8.1pqrt;6

感谢收听IXjdVOrnbZ2P;+bIUeoF

qe7O]-59*+rajh

重点讲解

k2L)+;YIQ)8^Q42

1.zoom around 四处奔波

EgSRHZ3sHAk&FEil0d

My father zooms around everyday to support the family.

3z=WNQ0q5C

我父亲为了养家糊口整日四处奔波AULxY.|4!mkZ,K1vP.

E_&,0oHG[+

2.radiate away 释放

Xn+;117VKMKj(B

The roses radiate away strong perfume.

CK*~%M4*%*n_b)Y

这些玫瑰散发着浓郁的香味8r5Xlv8D2lHHk%~

kB2_!eO6)&NBO

3.look for 寻找

8iR+!*jm9H*

I'm looking for my book, did you see it?

kIy[K_MnUo~%(2JE#*v

我在找我的课本,你看到了吗?

jBwN~(XM7rbEmX%Gu%0)Is=sAXIcFtd!2g,[l9J2Bo+
分享到
重点单词
  • ultimatelyadv. 最后,最终
  • galaxyn. 银河,一群显赫之人
  • trion. 三个一组,三重唱(奏)
  • mergev. 合并,融合,兼并
  • clipn. 夹子,钳,回形针,弹夹 n. 修剪,(羊毛的)剪下
  • rareadj. 稀罕的,稀薄的,罕见的,珍贵的 adj. 煎得
  • perfumen. 香水,香气 vt. 使香气弥漫
  • extremelyadv. 极其,非常
  • gravitationaladj. 重力的,引力作用的
  • eventuallyadv. 终于,最后