Premium
Density and Radial Velocity Strucutre of the Hydra I Cluster of Galaxies
Author(s) -
Baier F. W.,
Oleak H.
Publication year - 1983
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113040602
Subject(s) - velocity dispersion , astrophysics , physics , lernaean hydra , cluster (spacecraft) , galaxy cluster , radius , radial velocity , brightest cluster galaxy , galaxy , galaxy groups and clusters , astronomy , stars , geography , computer security , archaeology , computer science , programming language
The investigation of the distributions of number densities, radial velocities and morphological types in the Hydra I cluster led us to the conclusion that this cluster possesses dominant substructures. This result is in agreement with former conclusions of different authors that substructures are a typical phenomenon for a high percentage of all clusters of galaxies. The galaxies inside the radius 60 from the cluster centre giv ea mean cluster redshift 3332±102 km/s and a velocity dispersion 679 ± 87 km/s.