- #1
Magister
- 83
- 0
Reading about the flatness problem in the standard cosmological model I have came to this relation
[tex]
\frac{1-\Omega(t)}{\Omega(t)}=\frac{1-\Omega_0}{\Omega_0} \frac{1}{1+z}
[/tex]
where
[tex]
\Omega = \frac{\rho}{\rho_c}
[/tex]
and [itex]z[/itex] is the redshift.
I would like to know where this relation cames from. I supose it cames from the Friedmann equations but I am not getting there...
[tex]
\frac{1-\Omega(t)}{\Omega(t)}=\frac{1-\Omega_0}{\Omega_0} \frac{1}{1+z}
[/tex]
where
[tex]
\Omega = \frac{\rho}{\rho_c}
[/tex]
and [itex]z[/itex] is the redshift.
I would like to know where this relation cames from. I supose it cames from the Friedmann equations but I am not getting there...