volume 12, issue S333, P246-249 2017
DOI: 10.1017/s1743921317011140
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Girish Kulkarni, Tirthankar Roy Choudhury, Ewald Puchwein, Martin G. Haehnelt

Abstract: AbstractWe present predictions for the spatial distribution of 21 cm brightness temperature fluctuations from high-dynamic-range simulations for AGN-dominated reionization histories that have been tested against available Lyα and CMB data. We model AGN by extrapolating the observed Mbh–σ relation to high redshifts and assign them ionizing emissivities consistent with recent UV luminosity function measurements. AGN-dominated reionization histories increase the variance of the 21 cm emission by a factor of up to…

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