- #1
Quarlep
- 257
- 4
##H^2(t)-8ρπG/3=-k/a^2(t)## (Lets suppose a(t)=1) then
##H^2(t)-8ρπG/3=-k## In equations ##k## can be -1,0,1.
Then If ##k<0## then ##-k>0## then
##H^2(t)-8ρπG/3>0 ##→Hyperbolic Universe. This means ##Ω_k>0## I mean If ##k## negative ##Ω_k## must be positive isn't it ? I am confused here.
In cosmology calculator says ##Ω_k=1-Ω_m-Ω_Λ##
(Its look like hyperbolic universe I am trying to understand)
ThanksΩ
##H^2(t)-8ρπG/3=-k## In equations ##k## can be -1,0,1.
Then If ##k<0## then ##-k>0## then
##H^2(t)-8ρπG/3>0 ##→Hyperbolic Universe. This means ##Ω_k>0## I mean If ##k## negative ##Ω_k## must be positive isn't it ? I am confused here.
In cosmology calculator says ##Ω_k=1-Ω_m-Ω_Λ##
(Its look like hyperbolic universe I am trying to understand)
ThanksΩ