14
The
Standard Dust Models (Λ=0)
•Dynamics:
using the previous equations, we can rewrite eq. 7-18:
•And
in the limit of large values of R, we get:
•This
is easy to interpret.
–When Ω0 < 1, universe is open, hyperbolic,
and expands to infinity with
finite velocity.
–When Ω0 > 1, universe is closed, spherical,
and eventually collapse after
reaching a maximum size after a time:
