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IMAGE RELEASE:Shocking Results of Galaxy-Cluster Collisions（图）
Shocking Results Galaxy-Cluster Collisions
2017/11/23
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a cel...
VLA Gives New Insight Into Galaxy Cluster’s Spectacular “Mini-Halo”
VLA Galaxy Cluster’s Spectacular Mini-Halo
2017/7/21
Astronomers using the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) have discovered new details that are helping them decipher the mystery of how giant radio-emitting structures ...
Massive Galaxy Cluster Found to Be Bursting With New Stars
Massive Galaxy Cluster New Stars
2015/9/18
An international team of astronomers has discovered a distant massive galaxy cluster with a core bursting with new stars.The discovery, made with the help ofW. M. Keck Observatory’sMOSFIRE instru...
Galaxy cluster formation from the large-scale structure: a case study of the Abell 2125 complex at z=0.247
C153 SW cD
2014/12/24
The structure of the universe is believed to have formed by clustering hierarchically from small to large scales. Much of this evolution occurs very slowly but at a few special times more rapid, viole...
An AzTEC 1.1-mm survey for ULIRGs in the field of the Galaxy Cluster MS 0451.6-0305
late-type galaxies mid-IR galaxies
2014/12/22
We have undertaken a deep (σ∼ 1.1 mJy) 1.1-mm survey of the z= 0.54 cluster MS 0451.6−0305 using the AzTEC camera on the James Clerk Maxwell Telescope. We detect 36 sources with signal-to-...
Relics as probes of galaxy cluster mergers
Cosmology: large-scale structure of Universe – Galaxies: Clusters: general, intracluster medium
2011/10/12
Galaxy clusters grow by mergers with other clusters and galaxy groups. These mergers create shocks within the intracluster medium (ICM). It is proposed that within the shocks particles can be accelera...
Large values for the mass-to-light ratio (ϒ) in self-gravitating systems is one of the most important evidences of dark matter. We propose a expression for the mass-to-light ratio in spherical sy...
The texox cluster survey：using radio sources as galaxy cluster signposts
texox cluster survey galaxy cluster signposts
2009/6/8
The texox cluster survey：using radio sources as galaxy cluster signposts。