 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
• |
Can also solve
for velocity perturbations and
|
|
|
solve for
peculiar velocities as a function of
|
|
|
epoch.
|
|
|
• |
Need to
address the relativistic case since the
|
|
|
perturbations
begin in the radiation-dominated
|
|
epoch and we
need to know how they grow.
|
|
|
• |
A key result
from the analysis is that in the
|
|
|
radiation-dominated
universe growth is
|
|
|
relatively
fast:
|
|
|
• |
Slows down a
lot at low z (why?).
|
|