Galaxies-and-Dark-Matter网页 图片 视频 学术 词典 航班 Galaxies-and-Dark-Matter 例句 释义: 全部 更多例句筛选 1. In another part of the cluster there seem to be galaxies and dark matter, but no hot gas. 在星系团的其他方向,主要是明亮星系和暗物质,几乎没有气体。 top.jschina.com.cn...
The nearby dwarf spheroidal galaxies help us to probe the nature and extent of dark matter in at least two ways. First, if they are regarded as test particles orbiting our Galaxy, their Galactocentric radial velocities and distances can be used to constrain the distribution of dark matter in ...
As a result, dwarf galaxies give astronomers a better opportunity to study dark matter and its effects. NGC 4449 and its halo stream.Although the Cold Dark Matter Theory predicts the merger of dwarf galaxies, this image captures the first example to be studied in detail. Photo credit: R. ...
A dark matter map, created by Japanese astronomers using weak lensing. The background image of a wide field of galaxies was analyzed for weak lensing effects and the inferred dark matter distribution is indicated with the contours. Credit: Satoshi Miyazaki About 85% of the matter in the univers...
Dark Matter in Groups and Clusters of GalaxiesMajor progresses have been made this last year towards a better knowledge of the invisible mass. Michel Spiro will talk in details about the micro-lensing experiments and their promising results; the ROSAT satellite has provided extended X-ray maps of...
Galaxies without dark matter baffle astronomersAccess options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 24,99 € / 30 days cancel any time Learn more Subscription info for Chinese customers We have a dedicated website for our...
Dark matter is a mysterious, invisible substance that typically dominates the makeup ofgalaxies; finding an object that's missingdark matteris unprecedented, and came as a complete surprise. "If there's one object, you always have a little voice in the back of your mind saying, 'but what ...
The sample dwarf galaxies are found to be dark matter dominated over most radii. The relation between total baryonic (stars + gas) mass and maximum rotation velocity of the galaxies is roughly consistent with the baryonic Tully-Fisher relation calibrated from a larger sample of gas-dominated low...
This result provides observational evidence that could challenge the formation theory of dwarf galaxies in the framework of standard cosmology, and may provide new clues to the nature of dark matter, said Guo Qi, a researcher from the NAOC and head of the research team. ...
Lost and found dark matter in elliptical galaxies There is strong evidence that the mass of the Universe is dominated by dark matter, which exerts gravitational attraction but whose exact nature is unknown... A Dekel,F Stoehr,GA Mamon,... - 《Nature》 被引量: 315发表: 2005年 Lost and ...