Milne universe (disguised Minkowski): Ωk=1, a=H0·t, H=H0/a=1/t, rH=c·t

Initial condition for a=1: H0=67.15, Colors: Hubble radius, light Cone

The particle horizon & the event horizon are infinite in this scenario

Gray dashed curves: worldlines of objects comoving with the Hubbleflow

Proper (r), comoving (R), static (x). Plotrange: t|T|r|R|x=0…70 G(l)yr

⎆ | static | big crunch | big rip | radiation | matter | milne | mixed

   r(t)

   r(t)

↑ r(t) / ↓ R(t)

   R(t)

   R(t)

↑ R(t) / ↓ R(η)

   R(η)

   R(η)

↑ R(η) / ↓ x(T)

   x(T)

   x(T)

«back             Index: a, ȧ, ä, ã, â, H, Ḣ, Ḧ, rH, rE, rP, rL, Σr, Ω