star formation

Most planet-formation models predict a planet desert within one astronomical unit ( or the average distance from the Earth to the sun) of a host star.

大多数行星形成模型预言在主恒星一个天文单位（或从地球到太阳的平均距离）以内会有一个沙漠之星。

Madau combined his results with those from existing lower-redshift optical observations to refine the estimates of the star formation history of the universe.

马道将他的结果与原有的低红移可见光观测结果合并，使得对宇宙恒星形成史的估计精确度提升。

Conversely, the same processes can actually amplify star formation in large galaxies.

相反的, 相同的过程在大型星系中却能增强恒星的形成.

Major improvement has been made in the studies of interstellar molecular clouds and star formation.

一方面是星际分子云与恒星形成的天文研究取得了令人瞩目的成就.

They could be left over from a burst of star formation several million years ago.

它们有可能是数百万年前的恒星暴增所残存下来的。

There are two main theories concerning massive star formation accretion and merger.

文章简要叙述了有关大质量恒星形成的理论以及相关观测证据.

And this is what kills star formation.

这就是为什么它会阻止星体形成.

Other galaxies with such rapid rates of star formation are nearby and thus much more evolved.

如此快速形成恒星的其他星系都在近处,因而从演化的角度来说要超前得多.

Instead, their large clouds of molecular gas and dust do, triggering furious episodes of star formation.

反而它们所在的巨大分子气体和尘埃云发生了碰撞, 形成了剧烈的恒星形成区域.

The Effect of Star Formation on Spiral Structure

旋涡星系中恒星形成对旋涡结构的影响

These waves compress existing gas and cause star formation.

这些波压缩现有的气体而引起恒星的形成.

Known to some as the Elephant's Trunk Nebula, parts of the glowing gas and dust clouds of this star formation region may appear to take on foreboding forms, some nearly human.

一些人将其称为象躯星云，这一恒星形成区域中发光气体和尘埃云的部分显现出一些不详的形状，有的看起来像人一样。

This paper summarizes the results of observation and study for star formation in different phases.

综述了恒星形成各个阶段的观测结果和研究现状以及成协的天体物理环境情况.