Pressureless matter has equation-of-state parameter w=0, energy density ρ∝a−3 and negligible stress compared with its rest-mass density.
Ancestors (6)
- Barotropic equation of state
- Cosmological perfect-fluid continuity equation
- Cosmology
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- Age of a closed dust universe
- Age of a dust universe without a cosmological constant
- Age of a flat matter-Lambda universe
- Age ordering of dust universes at fixed Hubble parameter
- Closed matter-dominated Friedmann solution
- Cold-matter growth in a matter-coasting-fluid universe
- Comoving gauge in cosmology
- Dust relation between deceleration and density
- Effective equation of state of an oscillating scalar field
- Flat dust universe with a cosmological constant
- Flat matter-coasting-fluid Friedmann solution
- Friedmann effective potential for matter, radiation and vacuum
- Linear matter density equation in Newtonian gauge
- Matter density flow with a cosmological constant
- Matter-vacuum conformal age integral
- Mészáros equation
- Open matter-dominated Friedmann solution
- Oppenheimer-Snyder cloud
- Oppenheimer-Snyder model
- Particle horizon through radiation-matter equality
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- Radiation-matter scale factor in conformal time
- Total conformal lifetime of a flat matter-Lambda universe
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