Cosmology (Cosmologie)

Abstract

The last three years have been very fruitful ones in cosmology research. Brilliant achievement on the spectrum and homogeneities of cosmic microwave background radiation by COBE satellite is an example. It is, however, obviously impossible to review achievements in all fields in the number of pages allocated to our commission. This report, as in past reports, consists of some details of only some selected topics. I invited six active colleagues to collaborate in the preparation of this report. The topics are 1) Large Scale Structure and Motion (A. Dekel), 2) Formation of Galaxies and Large Scale Structure (S. Shandarin), 3) Active Galactic Nuclei in Cosmology (P.A. Shaver), 4) Cosmic Microwave Background Radiation (R. B. Partridge), 5) Primordial Nucleosynthesis (H. Reeves) and 6)The Cosmological Parameters (V. Trimble). Unfortunately, review on Early Universe could not be included because of the limit of page number, though it was planned originally. Recent developments in this area would be seen in the proceedings of recent international conferences (for example, Nobel Symposium 79 on ”The Birth and Early Evolution of Our Universe” Graeftavallen, Sweden, June, 1990, ed. B.-S. Skagerstam, World Scientific)