Evolution of the cosmic horizons in a matter dominated universe (Ωm=1)
in proper (r) & comoving (R) distances; plot range: r&R=0..70, t=0..70
Gray dashed curves: worldlines of objects comoving with the Hubbleflow
The Hubbleradius rH grows with 1.5c and the particlehorizon rP with 3c
If H=67.15 at a=1, the age of this universe at a=1 would be t=9.707543
Other diagrams: pure photon (Ωr=1) and mixed component (Ω=1) universes
