Hot dark matter | Article about hot dark matter by The Free Dictionary
hot dark matter
Also found in: Acronyms
hot dark matter Dark matter that consists of particles moving at speeds near to the speed of light. Since neutrinos have nonzero masses it is thought that they may contribute much of the hot dark matter in the Universe.
hot dark matter[¦hät ¦därk ′mad·ər]
A hypothetical type of dark matter consisting of entities that were not in thermal equilibrium in the early universe; possibilities include massive neutrinos and cosmic strings.
References in periodicals archive
Malaney adds that the low-energy bosons become cold dark matter, whereas the high-energy bosons become hot dark matter
To complicate the picture further, theorists can also try to work out what happens when cosmic strings interact with cold dark matter or with massive neutrinos (known as hot dark matter
Cosmologists first considered hot dark matter
, dark matter that shared the ambient temperature of the universe.