Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003mnras.345..552b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 345, Issue 2, pp. 552-560.
Astronomy and Astrophysics
Astronomy
6
Gravitation, Methods: Analytical, Galaxies: Clusters: General, Cosmology: Theory, Large-Scale Structure Of Universe
Scientific paper
We explore the development of galaxy clustering after an extremely long time in a flat Einstein-de Sitter universe. The time-scale for growth of clustering in this universe is shorter than the global expansion time-scale. This eventually leads to a single cluster of arbitrary large size, which dominates each expanding particle horizon. Since the particle horizons expand faster than the metric, one cluster may ultimately dominate the universe. Assuming that the distribution of galaxies in such a static, bound cluster becomes approximately isothermal, we show how it can be represented by a general relativistic metric embedded in an expanding Einstein-de Sitter universe. The embedding is achieved by means of a `Schwarzschild membrane'. Pressure is important, unlike in previous Tolman-Bondi models of inhomogeneities. These new hybrid models generalize previous descriptions of growing clusters and show how a changing equation of state for the matter may alter the large-scale symmetry of space-time over growing regions in the universe.
Baumann Daniel
Leong Bernard
Saslaw William C.
No associations
LandOfFree
A universe that changes its symmetry 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 A universe that changes its symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A universe that changes its symmetry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1033685