Proc. IAU volume 12, issue S333, P56-59 2017 DOI: 10.1017/s1743921317011310 View full text
Enrico Garaldi, Michele Compostella, Cristiano Porciani

Abstract: AbstractWe study a model of cosmic reionization where quasars (QSOs) are the dominant source of ionizing photons at all relevant epochs. We employ a suite of adaptive hydrodynamical simulations post-processed with a multi-wavelength Monte Carlo radiative-transfer code and calibrate them in order to accurately reproduce the observed quasar luminosity function and emissivity evolution. Our results show that the QSO-only model fails in reproducing key observables linked to the Helium reionization, as the temperat…

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