- #1
Apashanka
- 429
- 15
From the friedmann equation H2=8πGρ/3-k/a2,
1=ρ/(3H2/8πG)-k/a2H2
1=ρ/ρc-k/adot2
adot=+-√[k/(ρ/ρc-1)]
It is therefore if expansion/contraction is taking place ,
Positively curved space will have ρ>ρc
And negatively curved will have ρ<ρc
Is it the case??
1=ρ/(3H2/8πG)-k/a2H2
1=ρ/ρc-k/adot2
adot=+-√[k/(ρ/ρc-1)]
It is therefore if expansion/contraction is taking place ,
Positively curved space will have ρ>ρc
And negatively curved will have ρ<ρc
Is it the case??