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Session 21 - Galaxies and Clusters of Galaxies.
Oral session, Monday, June 10
Numerical Simulations of the large-scale structure formation predict that a considerable fraction, probably most of the baryonic matter in the universe is in a diffuse intergalactic medium within a temperature range of 10^6 - 10^7 K. We are searching for and examining this hot medium, by observing extragalactic X-ray shadows produced by outer disks and tidal tails of nearby galaxies, by detecting diffuse X-ray emission from caustics near rich clusters of galaxies, and by analyzing fluctuations in the observed X-ray background. Preliminary results and their implications will be discussed.
Program listing for Monday