CMB anisotropies at second order III: bispectrum from products of the first-order perturbations

Daisuke Nitta, Eiichiro Komatsu, Nicola Bartolo +2

We calculate the bispectrum of the Cosmic Microwave Background (CMB) temperature anisotropies induced by the second-order fluctuations in the Boltzmann equation. In this paper, whi…