rich clusters of galaxiesstructural properties/ A9850E Galactic structure, content and morphology A9850K Groups, clusters, and superclusters of galaxies A9850R Active and peculiar galaxiesFour polar ring galaxies discovered in rich clusters of galaxies are presented. Brief comments on their structural ...
“Nailing the black hole in Andromeda” will be remembered as one of Hubble’s most important findings, Kormendy says. “It makes us much more confident that the other central dark objects detected in galaxies are black holes too.”
The recently discovered ring of stars near Galactocentric distancer= 20 kpc is interpreted as baryonic matter accreted onto the second caustic ring of dark matter in our galaxy. Caustic rings of dark matter were predicted in the Galactic plane at radiian≃ 40 kpc /nwheren =1,2,3… They ...
摘要: Four polar ring galaxies discovered in rich clusters of galaxies are presented. Brief comments on their structural properties are given.关键词:Experimental/ clusters of galaxies galaxies/ polar ring galaxies rich clusters of galaxies structural properties/ A9850E Galactic structure, content and ...
Hamilton, in Encyclopedia of the Solar System (Second Edition), 2007 1. Introduction Planetary rings are those strikingly flat and circular appendages embracing all the giant planets in the outer Solar System: Jupiter, Saturn, Uranus, and Neptune. Like their cousins, the spiral galaxies, they ...
There is no clear answer today as to what could lead to the formation of such large, starless rings of hydrogen. Conventionally, galaxy-galaxy collisions were thought to lead to the formation of such off-centered rings around galaxies. However, such rings also generally contain stars. This is...
I - Ring galaxies Four ring galaxies and two candidates have been discovered in the Hercules supercluster of galaxies by applying the photographic contrast-enhancement techn... KI Wakamatsu,JL Heudier,T Watanabe,... - 《Astronomical Journal》 被引量: 4发表: 1986年 2D Spectroscopy of Candidate ...
This composite image of Arp 147, a pair of interacting galaxies located about 430 million light years from Earth, shows X-rays from the NASA's Chandra X-ray Observatory (pink) and optical data from theHubble Space Telescope(red, green, blue) produced by the Space Telescope Science Institute...
Also included in the catalog are two filamentary objects that are almost certainly SNRs, and 10 unusual compact extended objects discovered in the search. Two of these show remarkable spiral structure at both 8 microns and 24 microns. These are likely background galaxies previously hidden by the ...
This composite image of Arp 147, a pair of interacting galaxies located about 430 million light years from Earth, shows X-rays from the NASA's Chandra X-ray Observatory (pink) and optical data from theHubble Space Telescope(red, green, blue) produced by the Space Telescope Science Institute...