  In this paper, we try to detect the SZ effect in the 2MASS DWT clusters and
less bound objects in order to constrain the warm-hot intergalactic medium
distribution on large scales by cross-correlation analysis. The results of both
observed WMAP and mock SZ effect map indicate that the hot gas distributes from
inside as well as outside of the high density regions of galaxy clusters, which
is consistent with the results of both observation and hydro simulation.
Therefore, the DWT measurement of the cross-correlation would be a powerful
tool to probe the missing of baryons in the Universe.
