circumgalactic medium
English
Noun
circumgalactic medium (countable and uncountable, plural circumgalactic mediums or circumgalactic media)
- (astronomy, plasma physics) The gas and plasma in the region surrounding a galaxy, beyond the galactic disc or ovoid, or interstellar medium (ISM), but within the galaxy's virial radius.
Synonyms
- CGM (abbreviation)
Coordinate terms
(space plasmas):
- astrosphere
- intergalactic cloud
- intergalactic medium (“IGM”)
- interplanetary medium (“IPM”)
- interstellar cloud
- interstellar medium (“ISM”)
- intracluster medium (“ICM”)
- nebula
- supershell
Derived terms
- CGM (abbreviation)
Related terms
- intergalactic medium
- interplanetary medium
- interstellar medium
- intracluster medium