星系团
- 名Galaxy cluster;cluster of galaxies
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星系团Abell1795的形态和动力学研究
Study on Dynamics and Morphology of Cluster of Galaxies Abell 1795
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讨论了整个星系团的引力透镜效应。
The gravitational lensing effect from the whole cluster of galaxies is discussed .
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星系团PKS0745-191中射电气体与X射线气体的相互作用
The Interaction Between X-ray Gas and Radio Gas in the Central Region of the Cluster PKS 0745-191
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星系团包含的不仅仅只是富含恒星的星系团,还包括发出x射线的炽热气体。
The cluster contains not only galaxies filled with stars but also gas so hot it glows in X-rays .
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该三个星系团的X射线面亮度观测结果也被用于构建其气体密度和温度分布以作比较。
The observations of X-ray surface brightness are also used to derive the radial distribution of gas for comparison .
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COMA星系团的研究2.星系的成员概率
Studies on the Coma Cluster 2 . membership probabilities of individual galaxies
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首先介绍了星系团中的分立射电源,特别是cD星系研究的一些最新进展和结果。
Firstly , the new results of recent studies of discrete radio sources , especially cD galaxies in clusters are summerized ;
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Coma星系团的研究进展
Recent Progress of the Studies of Coma Galaxy Cluster
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COMA星系团的研究5.动力学问题讨论
Studies on the COMA Cluster 5.Dynamical Problems
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Virgo星系团天区星系的成员概率
Membership probabilities of galaxies in the region of the Virgo Cluster
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Virgo星系团的光度函数和质量函数
The Luminosity Function and Mass Function of the Virgo Cluster
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Virgo星系团内次结构的特征尺度
Characteristic Scales of Sub structrues in the Virgo Area
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该机构因为宇宙飞行器失联,也放弃了去年2月发射的一枚耗资巨大的超~高科技卫星来搜寻从黑洞和银河星系团中散发出来的X射线的计划。
The agency also abandoned a pricey ultra-high-tech satellite launched in February last year to search for X-rays emanating from black holes and galaxy clusters after losing contact with the spacecraft .
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通过观察X射线跟宇宙微波背景的相互作用,科学家们可以研究星系团的运动情况。宇宙微波背景指宇宙大爆炸时留下来的辐射。
By observing the interaction of the X-rays with the cosmic microwave background ( CMB ), which is leftover radiation from the Big Bang , scientists can study the movement of clusters .
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Virgo星系团的Virial质量和运动学分析
Virial Mass AND Kinematics OF THE Virgo Cluster
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Virgo星系团中星系与类星体成协鱼腥草紫斑病在田间具多次再侵染。
Association Between QSOs and Galaxies in the Field of the Virgo Cluster There is reinfection in field .
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在这里,我们的研究集中在两个方面:一个是星系团CL0024+17的暗物质环(Jeeetal.2007)。
Our research focuses on : ( 1 ) Dark matter ring in the CL0024 + 17 ( Jee et al . 2007 ) .
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类星体和Abell星系团的角相关函数
The Angular Correlation Function of QSOs and Abell Clusters
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另一个是bullet星系团所指出的暗物质中心与重子物质中心分离的现象,这一现象给出了暗物质在星系团中存在的直接证据。
The X-ray and lensing study of the bullet cluster show a clear offset between dark matter and baryonic matter center . This observation gave us the direct evidence that dark matter exist on cluster scales .
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ATA能够观察广泛的波长,因此可以检查在氢原子云层的星系团背景下的前景ETI信号。
The ATA can observe a wide range of wavelengths , so it can check stars in the foreground for ETI signals while it watches background galaxies for clouds of atomic hydrogen .
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我们认为,是A2255中子团的并合历史导致了星系团中星系与星系之间的碰撞概率增加,从而使团中心附近的晚型星系的恒星形成活动增加了。
Compared with the merging cluster A2255 , the star formation history for the late-type cluster galaxies is likely closely related to the virialization stage of parent cluster .
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兰天超星系团内部包含10万个星系,延伸5亿光年的距离。
Laniakea encompasses 100000 galaxies stretched out over 500 million light-years .
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星系团和射电源的空间分布
The space distributions of clusters of galaxies and of radio sources
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8个富星系团天区中星系的视向速度成员概率
Radial velocity membership probabilities of galaxies in 8 rich galaxy cluster regions
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星系团二维分布的分形特征
The Fractal Properties of the Two-dimensional Distribution of Galaxy Clusters
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大质量的星系团同样预示着暗物质的存在。
Massive galaxy clusters also show evidence of dark matter .
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有时,这些星系团之间会发生碰撞,并合二为一。
Sometimes these clusters collide and merge with one another .
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在万有引力的作用下,星系团就相当于晶状体。
The gravitational pull of the galaxy cluster acted like a lens .
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星系团成员星系光度函数及其动力学
The Luminosity Function for the Member Galaxies and the Dynamics of the Clusters
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星系团的射电研究进展
Recent Progress of Radio Studies on Clusters of Galaxies