星系

Radio galaxies and quasars, Seyfert galaxies are similar, but there are differences.

射电星系与类星体、塞佛特星系有相似之处，但又有区别。

Their simulation of the birth of a protostar in the early universe signifies a key step toward the ambitious goal of piecing together the formation of an entire primordial star and of predicting the mass and properties of these first stars of the universe.

他们对于原初星在早期宇宙形成的模仿意味着是一个迈入研究整个原始的星系的形成和预测第一批星系质量研究的关键性一步。

I study images of quasars giving birth to galaxies, galaxies whirling in the shapes of pinwheels, supernovas ringed by strands of luminous debris

我研究类星体产生星系的图像，这些星系如同玩具风车一样旋转，超新星周围是一条条由星体遗骸组成的闪闪发光的带状物

With galaxies, the slower the smash-up, the more violent the collision, since gravity has more time to pull the two galaxies into an inescapable bind.

因为重力有充裕的时间将两个星系牵引成不可避免的一个整体，所以对于星系未说，撞击得越慢，就越猛烈。

Based on the values of photometric redshifts, we form two enlarged samples including the newly-selected member candidates, with which the shape and dynamical substructure of Abell 2199 are also analyzed.

通过对团星系空间分布椭率和方位角的计算，表明该团星系的空间分布方位角与以往的研究显著一致。

Unlike more local galaxies, which are visible in the bluer filters as well,the very large 'redshifts' of galaxies at the edge of the observable universe mean that no light is emitted at the blue end of the spectrum.

与能够在蓝光段完整看见的我们周围的星系不同，在可观测宇宙边缘附近的星系红移相当巨大，它们的辐射都无法在蓝光段看见。

Likely triggered by interactions with nearby galaxy M81, M82's intense star formation activity appears to be blowing out immense clouds of dust and PAHs extending nearly 20,000 light-years both above and below the galactic plane. M82 is about 12 million light-years away in the constellation Ursa Major.

或许是由于附近M81星系相互作用引发的，M82剧烈的恒星形成活动看上去就像正在膨胀的巨大尘埃云，多环芳香烃化合物在星系盘面上下延伸了将近2万光年。M82位于距离我们1，200万光年远的大熊星座内。

At select host galaxies, Cepheid variable stars — known as reliable milepost markers — are cross-calibrated toType Ia supernovae in the same host galaxy.

在选定的宿主星系，具有可靠距离标识的造父变星，用于校准同一个星系中的Ia超新星。

It is located approximately 10 million light-years away in the Cepheus constellation.

图中所见的相片是由红外线的史匹哲太空望远镜进行的「史匹哲红外线邻近星系巡天」计划所拍摄，发出红色光芒的地方是星系中新星诞生的活跃区，而蓝色的星点则是刚巧在视线范围内我们银河系内的星。

NGC 2419 is sometimes called "the Intergalactic Wanderer", an appropriate title considering that the distance to the Milky Way's satellite galaxy, the Large Magellanic Cloud , is only about 160,000 light-years.

NGC 2419 有时也被称作&星系间的流浪者&，这相对于我们银河系与卫星星系大麦哲伦云仅仅16万光年的距离来说，是一个再合适不过的名称了。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。