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Crossing the Rubicon of Reionization with z ∼ 5 QSOs

  • Authors: Andrea Grazian, Konstantina Boutsia, Emanuele Giallongo, Stefano Cristiani, Fabio Fontanot, Manuela Bischetti, Angela Bongiorno, Giorgio Calderone, Guido Cupani, Valentina D'Odorico, Chiara Feruglio, Fabrizio Fiore, Francesco Guarneri, Matteo Porru, Ivano Saccheo

Andrea Grazian et al 2023 The Astrophysical Journal 955 .

  • Provider: AAS Journals

Caption: Figure 7.

The photoionization rate of the IGM measured by Lyman forest fitting (Bolton & Haehnelt 2007; Wyithe & Bolton 2011; Becker & Bolton 2013; Davies et al. 2018; Faucher-Giguère 2020; Gallego et al. 2021; Gaikwad et al. 2023) and with the proximity effect (Calverley et al. 2011). The ionizing background produced by bright QSOs and faint AGN at z ∼ 5 is shown by the blue square, assuming a LyC escape fraction of 70%.

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