dark matter Comparison Table

Astronomy View all facts Glossary Help

physical object > natural object > particle > hypothetical particle > dark matter

Next hypothetical particle: glueball Up: hypothetical particle Previous hypothetical particle: axion

dark matter comparison table

Subject has acronym has definition

cold dark matter CDM A model of structure formation in which an exotic particle whose energy is low at the time it decouples from other matter is responsible for structure formation.

hot dark matter Any form of dark matter which was relativistic at its point of decoupling.

massive compact halo object MACHO These are black holes, neutron stars and brown dwarfs, none of which are luminous and all of which are postulated to exist in the halos of galaxies. They are a form of dark matter.

Subject	has acronym	has definition
cold dark matter	CDM	A model of structure formation in which an exotic particle whose energy is low at the time it decouples from other matter is responsible for structure formation.
hot dark matter		Any form of dark matter which was relativistic at its point of decoupling.
massive compact halo object	MACHO	These are black holes, neutron stars and brown dwarfs, none of which are luminous and all of which are postulated to exist in the halos of galaxies. They are a form of dark matter.

Next hypothetical particle: glueball Up: hypothetical particle Previous hypothetical particle: axion