Antlia Cluster
Template:Short description Template:Galaxy cluster
The Antlia Cluster (or Abell S0636)[1] is a cluster of galaxies located in the Hydra–Centaurus Supercluster. The Antlia Cluster is the third-nearest to the Local Group after the Virgo Cluster and Fornax Cluster.[2] Antlia's distance from Earth is Script error: No such module "convert". to Script error: No such module "convert".[3] and can be viewed from Earth in the constellation Antlia.[3][4] The Antlia Cluster should not be confused with the Antlia Dwarf galaxy.[3]
Antlia is classified as a rare Bautz–Morgan type III cluster,[1][5] meaning it has no central dominant (cD) brightest cluster galaxy.[6] However, the cluster is dominated by two massive elliptical galaxies, NGC 3268 and NGC 3258, and contains a total of about 234 galaxies.[1][3] The cluster is very dense compared to other clusters such as Virgo and Fornax, thus containing early-type galaxies and a larger portion of dwarf ellipticals.[3][4]Script error: No such module "Unsubst". The cluster is split into two galaxy groups, the Northern subgroup gravitating around NGC 3268, and the Southern subgroup centered on NGC 3258.[3]
The cluster has an overall redshift of z = 0.0087, implying that the cluster is, like most objects in the Universe, receding from the Local Group.[1] Using the now-obsolete scientific satellite ASCA, X-ray observations show that the cluster is almost isothermal, with a mean temperature of kT ~ 2.0 keV.[1]
List of named objects in the Antlia Cluster
See also
References
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Further reading
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- Burnham Jr., Robert (1978) Burham's Celestial Handbook Revised Edition Vol. 1 of 3. Dover Publications. New York Template:ISBN