银河系

In fact, from a vantage point that viewed our galaxy face-on, astronomers in distant galaxies would likely see the Milky Way as a two-armed barred spiral similar to this artist's illustration.

事实上，如果天文学家从一个有利的位置朝我们银河系观看，那么从遥远星系上看到我们银河系是一个具有两条旋臂的棒旋星系，就像这张艺术家的插图一样。

A composite x-ray/optical image of the active NGC 1068 galaxy reveals an enormous plume of hot gas emanating from the supermassive black hole at the galaxy's center.

一幅由X－射线和视力组成的图像是关于NGC1068银河系展示一个巨大的热的气体发出的羽毛来自特大质量的黑洞在银河系的中心。

Optical engineer and world-renowned astrophotographer Stéphane Guisard contributed to ESO's GigaGalaxy Zoom project, by collaborating with ESO on a new 340-million pixel-vista of the central parts of our Milky Way.

世界著名的天文摄影大师、ESO光学工程师Stéphane Guisard 通过与ESO合作一张3.4亿像素的我们银河系中心区远景而&献身&于ESO的GB级银河系图像放大项目。

"Just after it was born, this neutron star got a one-way ticket out of the Galaxy," said co-author Robert Petre of NASA's Goddard Space Flight Center in Greenbelt, Md."Astronomers have seen other stars being flung out of the Milky Way, but few as fast as this."

&就在刚出生后不久，这个中子星就得到了一张离开银河系的路票&来自NASA的Goddard宇宙发射中心的共著者 Robert Petre 说到&天文学家已经观测到其他恒星冲出银河系，但很少有他这么快的&

This time, several main task personnel anxiously is waiting for the region senior official, as soon as saw the yellow senior official's to rush, immediately put through the event to report the place yellow race Mars interspace observation station, after Huang Qu senior official yellow Jinlong and the crew has greeted, directly arrived in front of the giant computer display monitor, not big a while, transmitted Mars aspect the live videotaping, saw only observes stationmaster a face startled appearance, saw the yellow senior official, immediately slightly calm, but still some aphasias explained religious doctrine:"Reports the yellow senior official, because in the short-term Milky Way nameless region will have a super giant star to have the violent detonation, instantaneous will produce in it the formidable shock-wave as well as will cause from this under the rapid change gravitational field together function, caused in the Milky Way correlation region to have a series of chain-reactions, finally forced a distance Earth probably is 20,000,000,000 kilometer diameter 100 kilometer about planetoids changed its original movement track; Latter passed through the home station most advanced computer to calculate repeatedly has obtained an astonishing result: This will change orbital the planetoid rapidly to hit after a year to ours Earth!"

此时，几名中心工作人员正急切地等待着区域长官，一见黄长官闯了进来，就立即接通了事件报告地点黄色人种火星星际观测站，黄区长官黄金龙与全体工作人员打过招呼后，就直接来到巨型电脑显示屏前，不大一会儿，就传来火星方面的实况录像，只见观测站长一脸惊慌的样子，见到黄长官，立刻稍微镇定了一下，但仍有些失语般地讲道：&报告黄长官，由于近期银河系无名区域内有一颗超级巨星发生猛烈的爆炸，在其瞬间产生的强大冲击波以及由此而导致的迅速改变的引力场共同作用下，引起银河系相关区域内发生了一系列的连锁反应，最终迫使一颗距地球大约为200亿公里的直径100千米左右的小行星改变了其原有的运行轨道；后又经本站最为先进的电脑反复计算得出了一个惊人的结果：这颗改变轨道的小行星将于一年后急速撞向我们的地球！&

Firstly, we adopt the same parametersthat well fit the Milky Way disk to the M31 disk evolution. We found thatthe obtained gas surface density and star formation rate profiles do notfit the M31's observation. This demonstrates that the star formation history inthe M31 disk may totally different from that in the Milky Way disk.

首先，我们将银河系的化学演化模型应用于M31上，发现银河系的恒星形成速率与气体面密度的关系并不符合M31的观测特征，这说明两者拥有不同的恒星形成历史。

Fermi's first map of the gamma-ray sky from the LAT is shown in this false-color image, an all-sky view that looks toward the center of our Milky Way Galaxy with the galactic plane projected across the middle.

这个伪彩色图是LAT观测的伽吗天空的开天图。这幅图是从银河系中心的视角观测。银河系银盘横跨图的中部。

A: There are no planetary alignments in the next few decades, Earth will not cross the galactic plane in 2012, and even if these alignments were to occur, their effects on the Earth would be negligible.

答：在今后的几十年当中，不会出现行星排成一条线的情况。2012年，地球也不会跨过银道面（译者注：银道面就是银河系的主平面。银河系成员如恒星、尘埃云及气体等，绝大部分都对称地分布在这个平面的两侧。

At about the same time as the drops in biodiversity, the researchers determined, the sun reaches the highest point in its orbit relative to the galactic plane, where most Milky Way stars reside.

研究者发现，在生物多样性剧减的同一时间，太阳到达其轨道相对银河系平面的最高点，那里是大多数银河系恒星聚集的地方。

First,current research of kinematic properties of the Galaxy as well as their latest results are reviewed.Second,an updated,most complete catalogue of 209 open clusters with galactic longitude,galactic latitude,heliocentric distance,age,absolute proper motion and radial velocity data as well as 41 open cluster only with radial velociyty data is compiled.Also,the spatial distribution of the open cluster system is studied.

首先，本文综述了银河系运动学性质的研究现状，总结了历年来银河系运动学参数的研究结果；其次，本文在对最新疏散星团观测资料和文献进行调研和整理的基础上，编纂了迄今最完整的同时具备银经、银纬、日心距、年龄、绝对自行与视向速度的209个疏散星团样本以及只有视向速度资料的41个疏散星团样本。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。