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1·It would seem sensible to seek the source of these in the universe's most conspicuous energy factories: quasars and gamma-ray bursts billions of light-years away from Earth.

在宇宙中最引人注目的能量工厂——距离地球数十亿光年的类星体和伽马射线爆发——中寻找这些物质的来源似乎是明智的。

2·Gamma-ray bursts last for an average of about 30 seconds.

爆炸发出类似伽马射线的高能射线，但伽马射线的爆发通常只持续约30秒钟。

3·The gamma-ray burst was first detected by NASA's Swift satellite in April 2009.

这个γ射线爆由NASA的“雨燕”观测卫星于2009年四月首先观测到。

4·NASA's Swift satellite picked up the X-ray afterglow of the September 16th gamma-ray burst.

美国航空航天局“雨燕”号卫星捕捉到的伽马射线余晖，产生于9月16日伽马射线爆发过后。

5·Both groups searched for the gamma-ray glow from dark matter in dwarf galaxies orbiting the Milky Way.

两组研究了环绕银河系的矮星系中的暗物质放射的伽马射线。

6·When the same source flared again after a 45 minute pause it was clear this event was not a typical gamma-ray burst.

当 45 分钟的停顿之后同一源头再次爆发时，很显然这一事件并非通常的伽马射线爆发。

7·The bubbles display a spectrum with higher peak energies than that of the diffuse gamma-ray glow seen throughout the sky.

气泡结构的光谱呈现出峰值能量高于全天区弥散伽马射线的状态。

8·NASA launched the Swift gamma-ray telescope thinking it would give scientists a way to monitor the births of black holes.

在恒星被黑洞摧毁的一瞬间，会发射出强大的γ射线，就如同它发出的SOS信号一样。

9·Soon after launch, Fermi started picking up gamma-ray bursts (GRBs), powerful explosions usually triggered by dying stars.

发射成功后不久，费米太空望远镜即开始收集伽马射线爆发(GRBs)的迹象，通常这种强烈的爆发是由濒死的恒星造成的。

10·These positrons then come into contact with electrons in the body, and the two annihilate, releasing two gamma-ray photons.

正电子与人体组织中的电子发生作用而湮灭，产生两个伽玛射线光子。

伽马射线

1·It would seem sensible to seek the source of these in the universe's most conspicuous energy factories: quasars and gamma-ray bursts billions of light-years away from Earth.

在宇宙中最引人注目的能量工厂——距离地球数十亿光年的类星体和伽马射线爆发——中寻找这些物质的来源似乎是明智的。

2·Shortly after launch in 2008, when we first turned on the telescope, we noticed an unexpected bright object in the newly observed gamma-ray sky.

2008年望远镜发射升空后不久，当我们第一次启动它的时候，在新近观察到的伽马射线天空中发现了一个出乎意料的明亮物体。

3·AS depicted in this NASA illustration, the twin bubbles seen in Fermi's gamma-ray observations also manifest themselves at X-ray and radio wavelengths.

按照美国航空航天局的示意图上所描绘的，费米伽马射线望远镜所观测到的双“气泡”在X射线和射电波长均有显现。

4·Soon after launch, Fermi started picking up gamma-ray bursts (GRBs), powerful explosions usually triggered by dying stars.

发射成功后不久，费米太空望远镜即开始收集伽马射线爆发(GRBs)的迹象，通常这种强烈的爆发是由濒死的恒星造成的。

5·The telescopes will also be good at spotting supernovae and gamma-ray bursts.

用这些望远镜对超新星及伽马射线爆发进行定位也不错。