星系

In addition, the kinetic energy Ek as a function of R will be different if the ρDE is different. Thus we can observationally measure the Ek of galaxies, compare it will our results here, and then deduce the ρDE in our universe.

而且动能 Ek 随著至星系中心距离 R 的变化，会因ρDE 的不同而不同，因此可以试图量测宇宙中星系的 Ek ，然后和这里的结果比对，即可推导出宇宙中的ρDE 。

It is an active galaxy lying at the centre of the Perseus Cluster of galaxies.

它是个位于英仙座星系群中心的活动星系。

What is special about this image of the Pinwheel Galaxy is the bright regions of hydrogen-alpha that Jason shows in stark contrast to the white and blue surrounding galaxy.

这张照片的特别之处在于风车星系中由氢组成的明亮区域和周围蓝色的星系形成了极其鲜明的对比。

This image provided by NASA Wednesday April 16, 2008 shows the Southern Pinwheel galaxy, in this composite image from NASA's Galaxy Evolution Explorer and the National Science Foundation's Very Large Array in New Mexico.

此图片由美国航天局提供的星期三08年4月十六日表明南风车星系，在这个复合图像从美国宇航局的星系演化探测器和美国国家科学基金会的甚大阵列在新墨西哥州。

Scientists observed that the quasar is shooting out highly energetic particles and fast-moving gas in the direction of the galaxy.

科学家们观察到类星体是向著星系的方向喷出出高度的高能粒子动态气体的星系。

These galaxies, the radio emission does not come from optical galaxies, but its double valve.

这种星系的射电辐射不是来自光学星系，而是它的双瓣。

In this paper the phase shifts in spiral galaxies M 81 and M 51 has been computed. It is found that the theoretical patterns of the spiral arms agree in general with the observational results of 21 cm radio emission in the main.

本文具体计算了M81，M51两星系的恒星臂与气体臂之间的相移，给出了两星系的星臂乃气臂的式样，与21厘米射电观测结果比较表明，理论与观测基本上是符合的。

Cen A, also known as NGC 5128, is also unusual compared to an average elliptical galaxy because it contains a higher proportion of young blue stars and is a very strong source of radio emission. Evidence indicates that Cen A is likely the result of the collision of two normal galaxies.

又名为NGC 5128的半人马座A和寻常椭圆星系的其他差异有：较高比例的年轻蓝色恒星和会发出很强的电波辐射，这些证据指向半人马座A是二个正常星系互撞后的产物。

If we consider a space uniformly filled with masses, as, for example, our space is filled with stars, galaxies and clusters of galaxies, we must conclude that, apart from localized large curvatures near particular stars or galaxies, space should possess an overall curvature due to the combined effect of all the masses- a regular tendency to curve uniformly over large distances.

如果我们考虑一个空间，被不均匀的质量块填充着，比如说，像我们的空间，被恒星、星系、和星系团填满，我们得出这样一个结论：除了局部在特殊的恒星或星系附近曲率很大的地方外，由于所有的质量块共同作用，空间应该有一个总曲率-一个在远距离上连续而不均匀的弯曲的趋势。

NGC 3256 is an impressive example of a peculiar galaxy that is actually the relict of a collision of two separate galaxies that took place in a distant past.

NGC 3256是一个给人深刻印象的特殊星系，实际上是发生于遥远过去的两漩涡星系碰撞后的残余物。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。