星系

Astronomers say that the galactic light has been redshifted.

于是天文学家就说星系的光「红移」了。

For sufficiently distant galaxies, the break is redshifted from its usual position in the ultraviolet part of the spectrum to the visible part.

对足够远的星系来说，此一中断已经从它通常所在的紫外频段红移至光谱的可见光部分。

This expansion is consistent with the observation that the light from distant galaxies has been redshifted ; the photons emitted have been stretched to longer wavelengths and lower frequency during their journey.

这种扩大是一致的看法，即从遥远星系光线已redshifted ；光子发射已延伸到波长更长的低频率在他们的旅程。

Pettini and his colleagues found that these three sets of lines were redshifted by different amounts: the heavy elements by less than the galaxy , the hydrogen by more.

佩提尼及其同事发现这三组谱线的红移程度不同：重元素不及星系，氢则超过。

An astute eye can pick up many strange arcs and distorted arclets , however,that are actually images of more distant galaxies.

眼光锐利的人可以发现更多的奇异光弧和扭曲的小弧，它们其实都是更遥远的星系图像。

An astute eye can pick up many strange arcs and distorted arclet s , however, that are actually images of more distant galaxies.

如果你的眼睛足够敏锐，你将能看到许多奇怪的弧线和扭曲的小弧线，当然，那些影像来自与更多更遥远的星系。

The new observations revealed hidden quasars in every one of the galaxies, the team reports online today in Science.

新的观测显示，隐藏在每一个类星体的星系研究报告称，今天的在线科学。

This observation supports the idea that at least some quasars are born from interactions between galaxies.

这次观测支持了至少一些类星体是由星系碰撞所产生的想法。

What are quasars and active galactic nuclei?

什么是类星体和活跃星系核？

According to their simulation, gravity acted on minute density variations in matter, gases, and the mysterious "dark matter" of the universe after the Big Bang in order to form this early stage, of a star-a protostar with a mass of just one percent of our sun.

根据他们的模仿，重力作用在物质、气体和大爆炸之后的神秘的宇宙&黑色物质&的微小浓缩变体，是为了形成星系的最初阶段--一颗原初星仅仅占我们太阳的百分之一。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。