出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：In order to study the reionization contribution to the kinetic Sunyaev-Zel‘dovich effect, we need to subtract the post-reionization contribution to the observed total signal. In this poster, we show post-reionization calculation of the kinetic Sunyaev-Zel‘dovich (kSZ) effect required to acquire the reionization contribution for our subsequent study. In the poster, we present the 3rd order perturbation theory (3PT) as an effective approximation for calculating the post-reionization kSZ effect. We find that, at l = 3000 7000, about 60% of the contribution comes from large scale (k < 1:5h=Mpc) structure at high redshifts (z > 1) where the 3PT is valid. Future work should model the reionization contribution so that the observed data from currently ongoing surveys can be used to constrain the reionization history.
