Unveiling the 3D temperature structure of galaxy clusters by means of
  the thermal SZ effect
  The Sunyaev-Zel'dovich (hereafter SZ) effect is a promising tool to derive
the gas temperature of galaxy clusters. The approximation of a spherically
symmetric gas distribution is usually used to determine the temperature
structure of galaxy clusters, but this approximation cannot properly describe
merging galaxy clusters. The methods used so far, which do not assume the
spherically symmetric distribution, permit us to derive 2D temperature maps of
merging galaxy clusters. In this paper, we propose a method to derive the
standard temperature deviation and temperature variance along the
line-of-sight, which permits us to analyze the 3D temperature structure of
galaxy clusters by means of the thermal SZ effect. We also propose a method to
reveal merger shock waves in galaxy clusters by analyzing the presence of
temperature inhomogeneities along the line-of-sight.
