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Sunyaev-Zel'dovich signal of the maxBCG SDSS galaxy clusters in WMAP
Rozo, Eduardo; Hao, Jiangang; Dodelson, Scott +1 more
The Planck Collaboration measured the Sunyaev-Zel’dovich decrement of optically selected clusters from the Sloan Digital Sky Survey, finding that it falls significantly below expectations based on existing mass calibration of the maxBCG galaxy clusters. Resolving this tension requires either the data to go up, or the theoretical expectations to co…
Constraints on non-Gaussianity from Sunyaev-Zeldovich cluster surveys
Mak, Daisy S. Y.; Pierpaoli, Elena
We perform a Fisher matrix analysis to forecast the capability of ongoing and future Sunyaev-Zeldovich cluster surveys in constraining the deviations from Gaussian distribution of primordial density perturbations. We use the constraining power of the cluster number counts and clustering properties to forecast limits on the fNL parameter…
Amplitudes of thermal and kinetic Sunyaev-Zel'dovich signals from small-scale CMB anisotropies
Melchiorri, Alessandro; Cooray, Asantha; Pagano, Luca +4 more
While the arcminute-scale cosmic microwave background (CMB) anisotropies are due to secondary effects, point sources dominate the total anisotropy power spectrum. At high frequencies the point sources are primarily in the form of dusty, star-forming galaxies. Both Herschel and Planck have recently measured the anisotropy power spectrum of cosmic i…