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:
