Imprints of Galaxy Clustering Evolution on Delta T/T
Abstract
The nonlinear evolution of matter clustering induces temperature anisotropies in the cosmic microwave background. The fluctuations in temperature are produced at a relatively low redshift, z <~ 10, and consequently are not affected by the uncertain reionization processes that occurred at earlier epochs. The amplitude of the effect depends on the evolution model assumed for galaxy clustering. For plausible parameter choices, the temperature fluctuations are in the range 10^6^ <~ {DELTA}T/T <~ 10^5^. Observed limits on {DELTA}T/T would he violated if nonlinear clustering on present cluster scales commenced prior to z ~ 10.
 Publication:

The Astrophysical Journal
 Pub Date:
 November 1994
 DOI:
 10.1086/174874
 Bibcode:
 1994ApJ...436....1M
 Keywords:

 Cosmic Noise;
 Galactic Clusters;
 Galactic Evolution;
 Gravitational Effects;
 Mathematical Models;
 Red Shift;
 Statistical Distributions;
 Temperature;
 Anisotropy;
 Celestial Bodies;
 Microwaves;
 Universe;
 Astrophysics;
 COSMOLOGY: COSMIC MICROWAVE BACKGROUND;
 GALAXIES: CLUSTERING;
 COSMOLOGY: LARGESCALE STRUCTURE OF UNIVERSE