Student Posters Repository

Galaxies, groups of galaxies and gravitational lensing effects create anisotropies in the cosmic microwave background. These anisotropies are highly non-Gaussian. This work describes our use of the bispectrum, the Fourier space equivalent of the three point function, to study these anisotropies. The bispectrum is a computationally challenging quantity to measure as for modern experiments there are $<10^{20}$ different bispectrum combinations. In the work we present our recent measurements of the bispectrum using the Atacama Cosmology Telescope and the Planck satellite.