A. A star cluster B. The whole disk C. The bulge D. The halo 相关知识点: 试题来源: 解析 A。解析:星团是银河系的一小部分。选项B整个银盘是银河系的一大部分;选项C核球是银河系比较重要的部分不是小部分;选项D银晕虽然相对恒星密度小但也不是很小的部分。反馈...
Thus, the dynamics of the Milky Way globular clusters can be used as tracers to infer the mass model of the Galaxy up to a large radius. In this work, we use the directly observable line-of-sight velocities to test if the dynamics of the globular cluster population is consistent with an...
Milky Way如何读 英:[ˈmɪlki:] 美:[ˈmɪlki] Milky Way是什么意思 释义 银河; Milky Way英英释义 noun a broad luminous irregular band of light that stretches completely around the celestial sphere and is caused by the light of myriads of faint stars ...
The NSC in the Milky Way is the only object of this class that can be resolved into individual stars. We measured the proper motions of more than 6000 stars within ~1.0 pc of the supermassive black hole Sgr A*. The full data set is provided in this work. We largely exclude the known...
Although the existence of a faint background of starlight in the core of the Coma cluster has been well established (1,2), its origin is uncertain. This va... MD Gregg,MJ West 被引量: 161发表: 0年 Infall Times for Milky Way Satellites From Their Present-Day Kinematics We analyse sub...
<italic>Aims.</italic> We built Galactic open star cluster mass functions (CMFs) for different age sub-samples and spatial locations in the wider solar neighbourhood. Here, we present a simple cluster formation and evolution model to reproduce the main f
High resolution infrared imaging and spectroscopy have given in the past five years very valuable new information on the central star cluster of the Milky Way. A review is given what these observations tell us about character and evolution of the cluster, and in particular about the stellar dynam...
Context. Massive clusters are more often found in actively star forming galaxies than in quiescent ones, similar to the Milky Way. Aims. We have carried ou... Borissova,Ivanov,VD,... - 《Astronomy & Astrophysics》 被引量: 75发表: 2006年 Discovery of new Milky Way star cluster candidates ...
The Milky Way is a nebular cluster like a shining belt crossing the night sky.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度
"In the Milky Way, there are only a handful of clusters rich in red supergiants," he said. "Finding a cluster like Barbá 2, which can be observed with a mid-sized telescope, is a significant and exciting discovery for astronomers. Being so far away and affected by moderate extinction,...