各种质量的恒星的演化，均以流体力学的时间尺度进行。
Evolution of stars of all masses takes place on a hydrodynamic time scale.
通过计算机模拟技术，对短程力步长在星系中的分子云和恒星的演化中的作用做了详细的研究。
The effect of the step for the short self-gravitation of molecular clouds is studied by means of numerical simulation.
现在，地质证据和恒星演化模型之间这种明显的矛盾被称为“微弱年轻太阳悖论”。
Now, this apparent contradiction between geologic evidence and the stellar evolution model became known as the faint young Sun paradox.
一般来说，较小的恒星——也就是那些体积达我们的太阳八倍大小的恒星——在它们漫长演化过程的终点，就会变成白矮星。
When they reach the end of their long evolutions, smaller stars—those up to eight times as massive as our own sun—typically become white dwarfs.
超新星残骸以重元素填充宇宙空间，压缩星际气体促进新恒星的形成，因而在星体演化过程中扮演重要角色。
Supernova remnants play an important role in stellar evolution by enriching space with heavy elements, and triggering new star formation by compressing interstellar gas.
物理学家恩里克·费米曾提出一个著名的问题：既然宇宙中有着海量的恒星系，其中有条件演化出生命的也为数不少，然而为什么到目前止还没有任何一个地外文明向地球人展示它们的存在？
The physicist Enrico Fermi famously asked why no extra-terrestrials have shown up on Earth when there are likely to be so many solar systems where life could have evolved.
恒星的形成对星系的演化很重要，对行星的产生也很重要——包括适宜人居住的或者不适宜人居住的行星。
Star formation is vital to galaxy evolution and the production of planets, both inhabited and uninhabited.
我们通过中红外波长来测量在老的且演化中的恒星（带有红色色彩蓝色恒星）中形成的尘埃。
The dust being formed in old, evolved stars (blue stars with a red tinge) is measured using mid-infrared wavelengths.
WFC3的光谱范围从紫外线到近红外线，揭示了恒星不同的演化阶段，这使天文学家得以剖析星系的恒星形成历史。
WFC3's broad wavelength range, from ultraviolet to near-infrared, reveals starsat different stages of evolution, allowing astronomers to dissect the galaxy'sstar-formation history.
我们通过中红外波长来测量在老的且演化中的恒星（带有红色色彩蓝色恒星）中形成的尘埃。
The dust beingformed in old, evolved stars (blue stars with a red tinge) is measuredusing mid-infrared wavelengths.
威廉姆斯最后说，随着我们研究这些过程效应渐趋详细，我们能分辨星系中单个恒星的数量越多，星系的演化图像就越精确。
The trick to studying the effects of this process in detail, Williams says, is being able to resolve many individual stars in galaxies to create an accurate picture of their evolution.
基于开普勒望远镜巨大的观测数量和优良的数据质量，科学家希望借此提高对恒星演化的认识。
Because of the quality of the Kepler data and the large number of stars the spacecraft will observe, scientists hope to improve their understanding of stellar evolution.
分子外流标志着恒星形成早期演化的一个重要阶段。
Molecular outflows mark an important phase in the early evolution of star formation.
如何处理恒星中的对流运动，是恒星结构和演化理论中一个极为重要的问题。
How to deal with the turbulent convection motion in stars is a very important problem in the theory of stellar structure and evolution.
恒星结构和演化理论是研究恒星内部的物理过程、结构和恒星如何演化的科学。
The theory of stellar structure and evolution concerns the various physical processes inside stars.
可见，行星状星云是恒星晚年演化的结果。
Obviously, a line of astroid nebula is a result which the star old age evolves.
贯穿对流是恒星演化理论长期未获很好解决的理论问题。
Convection overshooting is a long standing theoretical problem in the theory of stellar evolution.
恒星核心必将再度收缩，恒星不可抗拒地要演化到最后的状态。
The core again contracts, and the star's evolution proceeds inexorably to the final state.
演化恒星的色球活动与恒星自转周期间存在很好的相关性。
The relation between stellar chromospheric activity and rotation of evolution stars have a good relativity.
如果在恒星演化过程有磁应力来支撑引力，超过中子星质量上限的大质量中子星则不致于坍缩成黑洞。
If the magnetic stress bears up the gravitation in the stellar evolution, the big mass neutron star over the neutron - star mass can not collapse into a black hole.
超新星是恒星演化的最终阶段，是最激烈的天体物理现象。
A supernova is the last stage of stellar evolution, and is a violent astrophysical phenomena.
这些研究者就顽固地争辩说，恒星沿主星序向下的演化，应该伴随着连续的和很显著的质量损失。
These investigators tenaciously argued the evolution of stars downward along the sequence ought to be accompanied by a continuous and very substantial loss of mass.
原子核理论研究恒星的结构和演化﹐元素的起源和核合成﹐以及宇宙线问题。
The theoretical study of nuclear structure and the origin and evolution of stars elements of nuclear and cosmic ray problem.
描绘出了恒星在星际气体尘埃中诞生，在主星序阶段稳定演化，最后以白矮星，中子星或黑洞告终的一生经历轮廓。
It also gives a general picture of their origin in the interplanetary dust of gas, their stable evolution in the stage of main-sequence and their end with White Dwarf, Neution Star and Black Hole.
因此可以说类太阳振动的研究是传统的日震学与恒星结构和演化相结合的产物。
So, the study of solar-like oscillations came from helioseismology combine with the stellar structure and evolution.
由于高光度和高质量损失率等特性，大质量恒星在星系形成和演化等现代天体物理学的研究中扮演着重要的角色。
Due to their high luminosity and high mass-loss rates, massive stars are playing an important role in the studies of modern astrophysics, such as the formation and the evolution of galaxies.
弄清恒星的能源对恒星演化的研究是更为关键的问题。
An understanding of the stellar energy sources is still more vital for the problem of stellar evolution.
耀星是红矮星早期演化的一个必经阶段，这个阶段的持续时间取决于恒星的质量。
The stage of flare stars, which duration depends on the mass of the stars, is a natural stage of the early evolution for red dwarf stars.
简单的物理学定律揭示出，星际介质中的气尘复合体可以进化，先是演化为原恒星，接下去再演化为恒星。
Simple laws of physics suggest, that gas-dust complexes in the interstellar medium may evolve, first into protostars and subsequently into stars.
简单的物理学定律揭示出，星际介质中的气尘复合体可以进化，先是演化为原恒星，接下去再演化为恒星。
Simple laws of physics suggest, that gas-dust complexes in the interstellar medium may evolve, first into protostars and subsequently into stars.
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