球状星团,globular cluster
1)globular cluster球状星团
1.As a kind of compact star systems,globular clusters are very old ones with ages of older than 10~(10)years,which are different from another kind of young compact clusters, super star clusters(SSC)or massive youn.老年球状星团和年轻的超星团是两类不同性质的致密星团,观测表明它们都表现出某种程度的质量分层效应。
2.Stellar streams is defined as the assembly of the relic stars and interstellar matterof the globular clusters and/or nearby dwarf galaxies which are torn into pieces by thetidal force of the major galaxy.星流是指位于星系(更多地专指银河系)附近的球状星团或者矮星系被潮汐力拉扯并撕碎而形成的沿着一定轨道分布的恒星集团及星际物质,是星系形成的并合模型所预言的现象,也是近年天体物理研究的热点问题之一。
英文短句/例句

1.A typical globular cluster has about 1 million stars.一个典型的球状星团包含1百万恒星。
2.Study on Binary Stellar Populations of Globular Clusters in M31M31中球状星团的双星族合成研究
3.Smaller groups of stars called globular clusters often surround spiral galaxies.称作球状星团的小型恒星团体经常环绕在旋涡星系周围。
4.How could we be sure that these globularlike clusters really were younger versions of the globulars in our own galaxy?我们如何能确定这些类球状星团就是我们星系里球状星团当年的样子呢?
5.The old age typical of the globular clusters in our galaxy has had a profound impact on the study of globulars in general.在我们星系中,这些典型的老年球状星团对于一般球状星团的研究影响深远。
6.The discovery of young and intermediate-age globular clusters opens up a whole new way to study how globulars form.年轻及中年球状星团的发现,为球状星团的形成开启了新的研究道路。
7.What is it about globulars that overcomes these odds?能克服上述不利情况的球状星团,有何特异之处?
8.For this purpose the study of globular clusters is most instructive.在这个问题上球状星团的研究最富有指导意义。
9.Maybe globulars go on forming whenever conditions permit.也许在条件适当时,球状星团便会不断地形成。
10.The Absolute Proper Motion of M3 and Its Orbit in the Galaxy;球状星团M3的绝对自行测定及其轨道计算
11.Recently astronomers have discovered these intermediateage globular clusters in several elliptical galaxies.最近,天文学家已在数个椭圆星系里发现了这类中龄的球状星团
12.This finding corroborates the link between the merger process and the formation of globulars.这项发现确认了星系融合过程与球状星团形成之间的关联。
13.There is no absolutely sharp cutoff distinguishing galaxies from globular clusters.在星系和球状星团之间没有任何不可逾越的鸿沟。
14.Calculation for the Density Distribution of the Star Numbers near to the Magnetic Black??Hole in the Globular Custer球状星团中荷磁黑洞附近星的投影密度分布的计算
15.It dawned on astronomers that the crowded conditions in globulars could be the deciding factor.天文学家渐渐明白:球状星团内的拥挤状态可能是决定因素。
16.Globular cluster is a group of tens of thousands to millions of stars bounded under gravity.球状星团由上万至百万的恒星组成,在一个细小範围内由万有引力维系的集团。
17.A study of many globular clusters gives another important bit of information.对许多球状星团进行研究之后,使我们得到一些重要信息。
18.Space Distribution, Motional Orbits and Monte Carlo Simulation of Globular Clusters in the Galaxy;银河系中球状星团的空间分布、运动轨道及Monte Carlo模拟
相关短句/例句

globular clusters球状星团
1.The 29 F globular clusters in the galaxy are selected as samples.选用银河系中29个累积光谱型为F型的球状星团样本。
2.The research of globular clusters has important significance for the study of structure and evolution of the galaxies.球状星团是银河系中最古老的天体类型之一,它的研究对理解星系的结构和演化有着重要意义。
3)globular cluster M3球状星团M3
1.14 plates of globular cluster M3, taken with the 40cm refractor atSheshan station of Shanghai Astronomical Observatory, are used by thiswork.本文使用上海天文台佘山40厘米折射望远镜拍摄的14张最长 时间跨度为81年的球状星团M3底片的PDS扫描结果,使用与 Hipparcos星表相联系的基于国际大球惯性参考系的ACT星表中的 24颗恒星的位置和绝对自行为参考架,用中心重叠法进行天体测量 归算,得到了这个星团中心附近100 ×100 天区内534颗恒星的位置 和绝对自行,并利用这些自行对成员概率进行了估算,得到这个星 团的赤经方向绝对自行为- 0。
4)proto-globular cluster原球状星团
5)qiuzhuang xingxituan球状星系团
6)G spectral type globular clustersG型球状星团
延伸阅读

球状星团球状星团globularcluster星团的一类。因其外形呈球状而得名。星团里恒星高度密集,其中心区域的恒星空间密度比太阳附近恒星分布的密度大1000倍左右。星团的半径为几十秒差距,质量为几万到几十万太阳质量。属晕星族。在银河系里呈球状分布,但却沿着偏心率很大的椭圆轨道绕银心旋转。球状星团的成员星是银河系里最老的一批恒星,年龄达一百亿年。星团里发现了大量的天琴座RR型变星和星族Ⅱ造父变星,利用这些变星可以准确地定出球状星团的距离。目前已发现了130多个球状星团。据估计,银河系可能包含500个球状星团。全天最亮的球状星团是半人马座ω,即NGC5139。近年来在一些球状星团里发现了X射线源和脉冲星,对于研究球状星团的性质和恒星演化具有重要意义。另外,在一些较近的星系里也发现了球状星团。球状星云(武仙座M13)约由30万颗恒星组成