What did Prof. Richard Lieu prove about Abell 3667 Galaxy cluster? and the Universe radiation?

Answer 1

The WMAP Q, V, and W band radial profiles of temperature deviation of the CMB were constructed for a sample of 31 randomly selected nearby clusters of galaxies in directions of |b| > 30 deg. The profiles were compared in detail with the expected CMB SZ effect caused by these clusters, with the hot gas properties of each cluster obtained direct from X-ray observations, and with the WMAP point spread function fully taken into consideration. While the WMAP profiles of some clusters do exhibit the SZE, the phenomenon is also noted to be weak or absent from other clusters. Reliable conclusions can be drawn from the combined (co-added) datasets of all 31 clusters, because (a) any remaining systematic uncertainties are low, and (b) the data are extremely clean (i.e. free from foreground contaminants). Both (a) and (b) are facts which we established by examining hundreds of random fields. The verdict from the 31 co-added cluster fields is that the observed SZE only accounts for about 1/4 of the expected decrement. The discrepancy represents too much extra flux for optically thin intracluster thermal emission to be the cause. Radio sources (discrete or halo) are also excluded by WMAP filter ratio analysis. The fact that there is at best only partial SZE silohuette by the nearby clusters suggests an origin of the CMB unrelated to the Big Bang. Either substantial fraction of the radiation may have nearby associations, or WMAP's ability to fathom degree scale CMB structures is questionable.

Answer 2

I don't think that he proved anything....

He might have a thesis..... but nothing for sure.....

..."The collisions( Abell3667 and an other smaller galaxy cluster).. might explain the origin of ultrahigh-energy cosmic rays, ...."

http://www.space.com/scienceastronomy/astronomy/galactic_collisions_010207.html