GeV gamma-ray attenuation and the high-redshift UV background

We present new calculations of the evolving UV background out to the epoch of cosmological reionization and make predictions for the amount of GeV gamma-ray attenuation by electron–positron pair production. Our results are based on recent semi-analytic models of galaxy formation, which provide predi...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2009-11, Vol.399 (4), p.1694-1708
Hauptverfasser:	Gilmore, Rudy C., Madau, Piero, Primack, Joel R., Somerville, Rachel S., Haardt, Francesco
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Cosmology cosmology: theory diffuse radiation Earth, ocean, space Exact sciences and technology Gamma rays gamma rays: bursts gamma rays: theory intergalactic medium Quasars Red shift Star & galaxy formation Ultraviolet astronomy ultraviolet: galaxies
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