Astrophysics (index)about

intergalactic medium

(IGM)
(matter between galaxies)

The intergalactic medium (IGM) is matter such as dust and gas between galaxies. Similar matter between stars within a galaxy is called the interstellar medium. Between galaxies it is often plasma in filaments, mostly ionized hydrogen.

The IGM can heat to 105 to 107 K, called the warm-hot intergalactic medium (WHIM), observed in ultraviolet and low-energy X-ray radiation.

The intracluster medium has a similar meaning, but more specifically means the medium within a galaxy cluster.


(galaxies,gas,dust)
http://en.wikipedia.org/wiki/Intergalactic_medium

Referenced by:
Cloudy
cold gas
filament
fast radio burst (FRB)
galaxy
galaxy cluster (CL)
Gunn-Peterson trough
interplanetary medium (IPM)
interstellar medium (ISM)
Lyman-alpha forest
mass density
plasma
ram pressure
star formation (SF)
X-ray source (RS)

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