Averaging Inhomogeneous Universes: Volume, Angle, Line of Sight

Details Averaging Inhomogeneous Universes: Volume, Angle, Line of Sight Averaging Inhomogeneous Universes: Volume, Angle, Line of Sight

1998-01-13

arxiv.org/abs/astro-ph/9801122v2

Astronomy and Astrophysics

Astrophysics

9 pages, 0 figures, corrected references

Scientific paper

Cosmologies that match in a volume averaged sense need not generally have the same light propagation behaviors. In particular a universe with inhomogeneity may not demonstrate the Friedmann-Robertson-Walker distance-redshift relation even after volume averaging to FRW spacetime. Even the Dyer-Roeder prescription for incorporating inhomogeneity within a universe equivalent to FRW in an angle averaged sense does not guarantee FRW behavior in general. To legitimately use the FRW distance-redshift relation to interpret observations, the physical conditions must match in a line of sight sense (defined herein: most observations do), since light probes the mass distribution or geometry on all length scales.

Affiliated with

Also associated with

No associations

Rating

Averaging Inhomogeneous Universes: Volume, Angle, Line of Sight does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Averaging Inhomogeneous Universes: Volume, Angle, Line of Sight, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Averaging Inhomogeneous Universes: Volume, Angle, Line of Sight will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-644162