Search results
Results from the WOW.Com Content Network
The term "ansible" was coined by Ursula K. Le Guin in her 1966 novel Rocannon's World, [4] and refers to fictional instantaneous communication systems.[5] [6]The Ansible tool was developed by Michael DeHaan, the author of the provisioning server application Cobbler and co-author of the Fedora Unified Network Controller (Func) framework for remote administration.
Abell 2744, nicknamed Pandora's Cluster, is a giant galaxy cluster resulting from the simultaneous pile-up of at least four separate, smaller galaxy clusters that took place over a span of 350 million years, and is located approximately 4 billion light years from Earth. [1] The galaxies in the cluster make up less than five percent of its mass. [1]
Abell 2390 is a massive galaxy cluster located in the constellation Pegasus. [4] It is classified as an X-ray and rich galaxy clusters measured cooling rate of 200-300 M ʘ yr −1 . [ 5 ] The galaxy cluster contains a cD galaxy called Abell 2390 BCG (short for brightest cluster galaxy), associated with a complex radio source , B2151+141.
Abell 370 is a galaxy cluster located nearly 5 billion light-years away from the Earth (at redshift z = 0.375), in the constellation Cetus. [3] Its core is made up of several hundred galaxies. It was catalogued by George Abell , and is the most distant of the clusters he catalogued.
MACS J0025.4-1222 is a galaxy cluster created by the collision of two galaxy clusters, and is part of the MAssive Cluster Survey (MACS). Like the earlier discovered Bullet Cluster, this cluster shows a clear separation between the centroid of the intergalactic gas (of majority of the normal, or baryonic, mass) and the colliding clusters.
Abell 68 is an accreting cluster with a clustercentric radius measuring r sp /r 200,m = 1.291 ± 0.062 presenting a splashback feature [9] with a gas entropy showing the total feedback energy per particle declining from ~10 keV to zero at ~0.35r 200 implying there is an upper limit of the feedback efficiency of ~0.02 for the supermassive black ...
It has been popularly nicknamed the Train Wreck Cluster, [6] [7] [8] due to its chaotic structure. It is classified as a Bautz-Morgan type III cluster. [ 3 ] Analysis [ 2 ] of the motions of 293 galaxies in the cluster field suggested that Abell 520 was a cluster forming at the crossing of three filaments of the large scale structure.
This object is located at a distance of 23.3 megaparsecs (76 million light years) from the Milky Way [1] and has a peculiar aspect, with several plumes and streams of irregular shape that explains its inclusion on Halton C. Arp's Atlas of Peculiar Galaxies with the number 222, being classified as a "Galaxy with amorphous spiral arms".