The peculiar velocity and temperature profile of galaxy clusters
  Dynamical parameters like average velocity dispersion and temperature profile
of galaxy clusters are determined using a quasi equilibrium thermodynamic
theory. The calculated velocity dispersion results from theory and simulations
shows a good agreement with the velocity dispersion results of (Abdullah et al.
\cite{Abd11}). An Adaptive Mesh Refinement (AMR), Grid based hybrid code have
been used to carry out the simulations. Our results indicate that the average
velocity dispersion profile of $20$ Abell galaxy clusters falls in the range of
$500-1000$ km/s and their temperature profile is of the order of $10^7$ to
$10^8$K calculated on the basis of kinetic theory. The data in the plot shows a
significant contribution of gravitating particles clustering together in the
vicinity of cluster center and beyond a certain region this velocity dies out
and gets dominated by the Hubble's flow due to which all the galaxy clusters in
an expanding universe participate in Hubble's expansion.
