Dynamics of A2142 Cluster of Galaxies
Supervisor Dr. Jukka Nevalainen, Tartu Observatory. Contact jukka.nevalainen [ät] ut.ee
A2142 cluster is peculiar in the sense that its X-ray and radio morphology indicates a preferred direction of action, which coincides with the direction of a large scale galactic filament. The aim is to test different matter feeding scenarios for producing the observed features.
50% of the normal (baryonic) local matter, predicted by the current cosmology, is not detected, i.e. missing. Simulations indicate that these missing baryons reside in a form of Warm-Hot Intergalactic Medium (WHIM) which is very difficult to observe. We have developed a tool for finding WHIM by using galaxy luminosity density as a tracer. The aim of the work is to apply our tool to sight lines in SDSS an 2dF surveys, to find WHIM structures.