File:Full sky maps of the thermal Sunyaev–Zel'dovich effect as quantified by the Compton y parameter (equation 8) for different redshift intervals.jpg

English: "The first three maps show the shells from z = 0–0.05, z = 0.05–0.1 and z = 0.1–0.15, while the fourth one in the back shows a much larger redshift range, z = 0.15–5.0, and hence gives higher values. The map on the bottom right shows the total integrated Compton y from z = 0 to 5, i.e. the sum of the four maps shown above it." "Fig. 7 illustrates the light-cone output for the case of the thermal SZE (see Appendix A for a detailed description of the implementation of the light-cone output). The panels show full-sky healpix maps of the dimensionless Compton y parameter, […] where kB is Boltzmann’s constant, me is the electron mass, ne is the free electron number density, is the proper distance along the path traveled by the CMB photon, and the redshift limits are indicated below each panel. See Appendix A2.3 for our numerical implementation of the above integral."