Cosmology when living near the Great Attractor

Details Cosmology when living near the Great Attractor Cosmology when living near the Great Attractor

2012-03-20

arxiv.org/abs/1203.4567v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages, 6 figures, Submitted to MNRAS

Scientific paper

If we live in the vicinity of the hypothesized Great Attractor, the age of the universe as inferred from the local expansion rate can be off by three per cent. We study the effect that living inside or near a massive overdensity has on cosmological parameters induced from observations of supernovae, the Hubble parameter and the Cosmic Microwave Background. We compare the results to those for an observer in a perfectly homogeneous LCDM universe. We find that for instance the inferred value for the global Hubble parameter changes by around three per cent if we happen to live inside a massive overdensity such as the hypothesized Great Attractor. Taking into account the effect of such structures on our perception of the universe makes cosmology perhaps less precise, but more accurate.

Affiliated with

Also associated with

No associations

Rating

Cosmology when living near the Great Attractor 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 Cosmology when living near the Great Attractor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmology when living near the Great Attractor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-487414