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Ionization by early quasars and Cosmic Microwave Background anisotropies

N. Aghanim·F. X. Desert·J. L. Puget·R. Gispert
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Abstract

We discuss the photoionization of the intergalactic medium by early formed quasars and propose a mechanism which could generate measurable temperature fluctuations $δ_{T }~=~ΔT/T$ 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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N. Aghanim, F. X. Desert, J. L. Puget, R. Gispert. 1996-04-16. Ionization by early quasars and Cosmic Microwave Background anisotropies. https://arxiv.org/abs/astro-ph/9604083

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