The pattern of temperature fluctuations in the CMBR

Brief description

The cosmic microwave background radiation (CMBR), relic radiation from approximately 400\,000 years after the Big Bang, is of crucial importance in cosmology: temperature variations in the CMBR indicate density fluctuations in the early Universe -- fluctuations which grew, under the influence of gravity, to become the galaxy clusters and superclusters we see today. The statistical properties of the CMBR temperature distribution provides strong constraints on cosmological parameters: e.g. the density, curvature and expansion rate of the Universe. In this experiment students will use the software package CMBFAST to explore how the pattern of CMBR temperature fluctuations depends on a number of different cosmological parameters.