A Search for X-ray Reionization Signatures from Cross-correlation of Wmap and Rosat Rass Data

We present an observational search for the possible correlation between cosmic microwave background (CMB) polarization map and soft X-ray background (SXRB) based on the ROSAT All-sky Survey (RASS) archive and WMAP fiveyear observations. This is motivated by the fact that some of the CMB polarization may arise from the scattering of CMB photons due to the… CONTINUE READING