Forgot your password?
KIPAC Tea Talk: Phil Bull
Measures of acceleration in cosmology
| When |
Nov 06, 2012
from 11:00 AM to 12:00 PM |
|---|---|
| Where | Campus, Varian 355 |
| Add event to calendar |
vCal
iCal
|
A wide range of cosmological observations imply that the expansion of the Universe is accelerating -- if they are interpreted within a homogeneous and isotropic "FLRW" model. On considering inhomogeneous models, however, we find that "acceleration" becomes a rather ambiguous concept. In this talk, I describe how the question of whether spacetime is accelerating depends on what measure of acceleration is being used, and explain how this affects attempts to solve the dark energy problem.
