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The influence of quarks and gluons jets coming from primordial black holes on the reionization of the Universe

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      Abstract

      The quantum evaporation of primordial black holes may have a relevant effect on the reionization of the Universe at small redshifts (\(z \leq 60\)): in this paper, I studied the possibility of a reionization induced by the photons emitted during the last stages of the black holes life. I also took into account the quark and gluons jets production, that sensibly modifies the blackbody Hawking emission spectrum. In this way, one obtains a ``late and sudden'' reionization process, characterised by a very well controlled rise of the plasma temperature: the plasma heating is not so high to induce a strong distortion of the CBR spectrum, in agreement with the recent FIRAS upper limit on the comptonization parameter.

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      Most cited references 5

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      Particle creation by black holes

       S. Hawking (1975)
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        Bubble collisions in the very early universe

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          Primordial black holes and generalized constraints on chaotic inflation

           B. Carr,  James Lidsey (1993)
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            Author and article information

            Journal
            19 April 1996
            astro-ph/9604116
            10.1142/S0217751X97002280
            Custom metadata
            KfA-2-1996
            Int.J.Mod.Phys. A12 (1997) 4167-4198
            Plain Tex, 21 pages
            astro-ph gr-qc

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