恒星

When one studies the progenitor models of SNe Ia, the dependence of the mass of CO WD on metallicity i.e.

在本文中，我们也研究了恒星在零龄主序时的质量与其演化成白矮星后的质量之间的关系(以下简称初始-终止质量关系)随金属丰度的演化。

The effect of metallicity can make this relation disperse in the V-band, but studies show that this is mainly limited to the case when the stellar mass is less than 0.6M (subscript ⊙).

尽管主序星的V波段质光关系由于金属丰度的影响而具有一定的弥散性，但有研究表明这种影响主要限于恒星质量小于0.6M的情况。

Centered in this star field, Mirach is also called Beta Andromedae.

其位于恒星区域的中央，别名叫仙女座beta星。

Thilker and members of the Galaxy Evolution Explorer team spotted the Ghost of Mirach in images taken during the space telescope's all-sky survey.

约翰霍普金斯大学的David Thilker说，这个天上的&幽灵&已经死亡，但是我们却看到他发出了一种来自新恒星的光线。

These stars formed about four million years ago from the nebular material and their stellar winds are clearing a hole in the nebula's center, insulated by a layer of dust and hot gas.

这些星星是在约四万年前从星云原料中形成的，而他们的恒星风在星云的中心吹出一个洞，被一层的尘埃与炙热气体所隔离。

In this sharp composite from the Hubble Space Telescope, Fomalhaut's surrounding ring of dusty debris is imaged in detail, with overwhelming glare from the star masked by an occulting disk in the camera's coronagraph.

在这张哈勃空间望远镜拍摄的清晰合成照片中，北落师门周围的尘埃碎片组成的光环清晰可见，来自恒星的耀光被相机的日冕仪遮掩园面给遮盖了。

We shall delve into some of the ways in which the structure of the Universe influences the tenor of our philosophizing and feeling for the Universe; what the unsuspected metaphysical impact of the discovery of extraterrestrial life might prove to be; how the inevitable features of a life-supporting planet filter down to influence the structure and behaviour of living things; and how the stars and the sky overlain by our interpretations of them have influenced our concepts of time and determinism.

本书将探讨宇宙的结构如何影响我们对宇宙的哲学思索和感性认识；如果发现地球以外的生命，将会对人类的哲学理念发生何种难以预料的冲击；滋养生命的行星所必然具备的特点，如何影响了这个星球上生物的结构和行为；以及布满恒星的夜空，它曾引发了人类无穷无尽的想象和解释，如何影响了我们的时间观念，令我们产生了宿命的观点。

Because the photospheric temperature of carbon stars are less than 3000K and the temperature of rich-dust envelope formed by the mass loss is lower, and therefore most of the energy from carbon stars are radiated between 1 to 60um range, in which the vibrational and ro-vibrational bands of many molecules also lies, the study of infrared spectra in this wavelength range is very important to reveal chemical compositions, dust formation process, the atmospheric structure and evolutionary status of stars.

碳星光球的有效温度不超过3000K，同时较大的质量损失率形成了富碳的尘埃壳层，以致于它的辐射能量主要集中在1—60μm的红外波段上，并且许多分子的转动振动能谱也集中在红外，因此在红外波段的研究对揭示碳星化学成份及其分布、尘埃形成过程、恒星大气结构和演化状态都有十分重要的意义。

Inside the constellation Piscis Australis, a giant disk's debris surrounds this star with a diameter about 21.5 billion miles.

一个直径为215亿英里的巨大残骸圆盘包围着这颗恒星，这颗行星就位于残骸圆盘内部。

Explanation: Fomalhaut (sounds like "foam-a-lot") is a bright, young, star, a short 25 light-years from planet Earth in the direction of the constellation Piscis Austrinus.

说明： 北落师门（读音像&foam－a－lot&）是一颗明亮的年轻恒星，位于南鱼座，距离地球25光年。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。