The search for the primordial B-modes in the cosmic microwave background (CMB) polarization depends on the separation from the brighter dust foreground signal. In this context, the characterization of the spatial variations of the spectral energy distribution (SED) of thermal dust in polarization has become a critical subject of study.
This contribution aims at presenting a power spectra...
The NIKA2 Sunyaev Zel’dovich Large Program (LPSZ) aims at studying 45 clusters of galaxies at intermediate and high redshift (0.5 < z < 0.9). A joint analysis of the thermal SZ (tSZ) effect on CMB at millimetre wavelength with the NIKA2 camera and in X-ray with XMM-Newton satellite permits the reconstruction of clusters’ thermodynamical properties and hydrostatic masses. These mass estimates...