We use simple theoretical models to interpret the results of size-mass relation of each type galaxy.
我们构建了简单的理论模型来解释观测得到的不同形态星系的大小一质量关系。
At times, enough gas builds up for the dwarf to collapse, leading its carbon to fuse nearly instantly and the dwarf to explode in a Type I supernova, which can outshine a galaxy for a few months.
有时，足够的气体会积累起来导致这颗矮星发生坍缩，使得它的碳原子几乎能立即聚合，而爆炸成为I类超新星，它在几个月内的亮度能超过一个星系。
A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dust orbiting in rings nearly perpendicular to the plane of the galactic disk.
极环星系是种稀有的星系类型，它们有着几乎和银盘平面垂直，呈环形公转的大量的恒星、气体和星尘。
A small, irregular galaxy, the SMC represents a type of galaxy more common in the early Universe.
作为一个小而不规则的星系，小麦哲伦星系呈现出早期宇宙星系的普遍类型。
Red dwarfs are also common -in fact, astronomers say they are the most common type of star in the galaxy.
事实上红矮星也很常见，天文学家认为它们是星系中最常见的星体。
Red dwarfs are also common - in fact, astronomers say they are the most common type of star in the galaxy.
事实上红矮星也很常见，天文学家认为它们是星系中最常见的星体。
The chance of observing a type Ia supernova in any given galaxy is low. Only one or two are expected to pop off per galaxy per millennium.
在任一给定的星系中观测到Ia型超新星的机会是很小的，每个星系每千年预期只有一到两次。
Nonetheless, the study provides “the most convincing observational test” that the mix of stars -- heavyweights and lightweights -- varies dramatically from one type of galaxy to another, says Ellis.
尽管如此，这项研究提供了“最令人信服的观测试验”，群星--重量级的，轻量级的--从一种星系到另一种，引人注目，各式各样；埃利斯说。
The Small Magellanic Cloud, and its companion galaxy the Large Magellanic Cloud, are the two galaxies where this type of study is possible.
小麦哲伦星云和其伴生的大麦哲伦星云，是在可能进行这种研究的两个星系。
NGC 1427a is an example of a dwarf irregular galaxy, a type of galaxy that is significantly less bright than regular galaxies and characterised by a peculiar shape.
NGC 1427a是个典型的矮星系、不规则星系，它们的外形不规则，并且光度比规则星系(涡旋星系、椭圆星系)小。
Though never seen before, this new type of dwarf galaxy may be common throughout the more distant and early universe, when pristine gas was more pervasive.
虽然这是首次观察到这一现象，但这一新型的矮星系在更遥远、更早期的宇宙中应该相当普遍，因为那时宇宙中的原始气体丰度要比现在高的多。
The rapid disintegration of open clusters is reinforced by the fact that the team found that the B stars are significantly more spread in the galaxy than even the more massive O-type.
研究小组发现了B型星在星系中的分布甚至比更巨大的O型星还要广泛的事实，这为疏散星团的瓦解迅速提供了佐证。
The rapid disintegration of open clusters is reinforced by the fact that the team found that the B stars are significantly more spread in the galaxy than even the more massive O-type.
研究小组发现了B型星在星系中的分布甚至比更巨大的O型星还要广泛的事实，这为疏散星团的瓦解迅速提供了佐证。
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