Can COBE see the shape of the universe?

Details Can COBE see the shape of the universe? Can COBE see the shape of the universe?

1997-08-25

arxiv.org/abs/astro-ph/9708225v3

Phys.Rev.D57:5982-5996,1998

Astronomy and Astrophysics

Astrophysics

16 Pages, 5 Figures. Version published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.57.5982

In recent years, the large angle COBE--DMR data have been used to place constraints on the size and shape of certain topologically compact models of the universe. Here we show that this approach does not work for generic compact models. In particular, we show that compact hyperbolic models do not suffer the same loss of large angle power seen in flat or spherical models. This follows from applying a topological theorem to show that generic hyperbolic three manifolds support long wavelength fluctuations, and by taking into account the dominant role played by the integrated Sachs-Wolfe effect in a hyperbolic universe.

Affiliated with

Also associated with

No associations

Rating

Can COBE see the shape of the universe? 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 Can COBE see the shape of the universe?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Can COBE see the shape of the universe? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-422337