Astrophysics (Index)About

intracluster medium

(ICM, intracluster gas)
(hot plasma throughout a galaxy cluster)

The intracluster medium (ICM or intracluster gas) is very hot plasma spread throughout a galaxy cluster (most dense in the center), typically hydrogen and helium ions at 10 to 100 megakelvins. A cluster's total ICM mass is more than that of all its stars, but still a fraction of the cluster's dark matter mass. It is an X-ray source.

(galaxy clusters,plasma)
Further reading:

Referenced by pages:
cooling flow
star formation feedback
fossil group
galaxy cluster (CL)
intergalactic medium (IGM)
interstellar astrophysics
Massive Cluster Survey (MACS)
radio relics
Sunyaev-Zel'dovich effect (SZ effect)
thermal bremsstrahlung
turbulent pressure