Ionization by early quasars and Cosmic Microwave Background anisotropies
N. Aghanim, F. X. Desert, J. L. Puget, R. Gispert
Abstract
We discuss the photoionization of the intergalactic medium by early formed quasars and propose a mechanism which could generate measurable temperature fluctuations δT ~=~ΔT/T of the cosmic microwave background (CMB). Early quasars produce individual ionized regions around themselves. We evaluate both thermal and kinetic (first-order Doppler) Sunyaev-Zeldovich (SZ) effects associated with those ionized regions.
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