In astronomy, the intracluster medium is the superheated plasma that permeates a galaxy cluster. The gas consists mainly of ionized hydrogen and helium and accounts for most of the baryonic material i
The overlaid blue cloud illustrates the intracluster medium around the Spiderweb Galaxy, as seen when the universe was 3 billion years old.
Chandra image of the Perseus Cluster's radio lobes. These relativistic jets of plasma emit radio waves, are X-ray "cold", and appear as dark patches in stark contrast to the rest of the ICM.
The Sunyaev–Zeldovich effect is the spectral distortion of the cosmic microwave background through inverse Compton scattering by high-energy electrons in galaxy clusters, in which the low-energy CMB p
First measurements of the thermal Sunyaev–Zeldovich effect from the Atacama Large Millimeter Array with one of the most massive galaxy clusters known, RX J1347.5-1145.