Introduction to CosmologyLecture 5

0 0(t +dt , 0)

1 1 1(t +dt , r )

lineP’s world

lineO’s world

(t , 0)0

1 1(t , r )

Ωm,0 = 0.3, ΩΛ,0 = 0.7

Ωm,0 = 0.3, Ωk,0 = 0.7

Ωm,0 = 0.0, Ωk,0 = 1

Ωm,0 = 0.3, ΩΛ,0 = 0.7

Ωm,0 = 0.3, Ωk,0 = 0.7

Ωm,0 = 0.0, Ωk,0 = 1

Angular size of typical CMB patch