galaxy cluster


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galaxy cluster

See clusters of galaxies.

galaxy cluster

[′gal·ik·sē ‚kləs·tər]
(astronomy)
A collection of from two to several hundred galaxies which are much more densely distributed than the average density of galaxies in space.
References in periodicals archive ?
Abell 2744 (below) is a galaxy cluster whose tremendous mass--equivalent to 2 quadrillion suns--turns it into a gravitational lens that bends and magnifies light from distant objects.
Using the Hubble Space Telescope and the European Southern Observatory's Very Large Telescope the team watched four distant galaxies at the centre of a galaxy cluster 1.
According to the group's theory, two different mechanisms regulate star formation, depending on whether a galaxy cluster is above or below the temperature threshold.
The intense heat in these central galaxies, possibly from colliding with another galaxy cluster, likely "dried up" the precipitation around the black hole.
At the center of the image captured lie two elliptical galaxies, part of a galaxy cluster known as [HGO2008] SDSS J1531+3414, which have strayed into each other's path.
New York (AirGuideBusiness - Business & Industry Features) Fri, Apr 4, 2014 - NASA's Hubble Space Telescope has weighed the largest known galaxy cluster in the distant universe, catalogued as ACT-CL J0102-4915, and found it definitely lives up to its nickname -- El Gordo (Spanish for "the fat one").
The center of a galaxy cluster houses a soup of superheated gas and plasma, in which electrons bounce around at about the speed of light.
This shows a galaxy cluster already existed in the early stages of the universe when it was still less than one billion years into its history of 13.
A team of Japanese scientists claims to have measured growth in a galaxy cluster, the universe's largest structure bound by gravity, Taiwan's government-run Academia Sinica said in a press release Wednesday.
Summary: Scientists have found a galaxy cluster some 10.
The telescope recorded X-rays created by electrons located in the hot core of a galaxy cluster.
The new observations reveal for the first time the motion of gas as it is ripped out of the galaxy ESO 137-001 as it ploughs at high speed into a vast galaxy cluster.