A Census of the LyC Photons that Form the UV Background During Reionization by Katz, H, Kimm, T, Haehnelt, M, Sijacki, D, Rosdahl, J, Blaizot, J

“…We demonstrate that there are large variations in the escape fraction depending on the source, with the escape fraction being highest ( ∼45--60percent ) for photons emitted by the oldest stars that penetrate into the intergalactic medium via low opacity channels carved by the ionising photons and supernova from younger stars. …”

Modelling Lyman α forest cross-correlations with LyMAS by Lochhaas, C, Weinberg, D, Peirani, S, Dubois, Y, Colombi, S, Blaizot, J, Font-Ribera, A, Pichon, C, Devriendt, J

“…We infer bias-weighted mean halo masses of Mh/1012 h-1M⊙ = 2.19+0.16-0.15 and 0.69+0.16-0.14 for the host haloes of quasars and DLAs, with ~0.2 dex systematic uncertainty associated with redshift evolution, intergalactic medium parameters, and selection of data fitting range.…”

MgII in the JWST era: a probe of lyman continuum escape? by Katz, H, Garel, T, Rosdahl, J, Mauerhofer, V, Kimm, T, Blaizot, J, Michel-Dansac, L, Devriendt, J, Slyz, A, Haehnelt, M

“…Due to the intervening intergalactic medium (IGM), the possibility of observing LyC photons directly in the epoch of reionization is highly unlikely. …”

Introducing SPHINX-MHD: the impact of primordial magnetic fields on the first galaxies, reionization, and the global 21-cm signal by Katz, H, Martin-Alvarez, S, Rosdahl, J, Kimm, T, Blaizot, J, Haehnelt, MG, Michel-Dansac, L, Garel, T, Oñorbe, J, Devriendt, J, Slyz, A, Attia, O, Teyssier, R

“…We present the first results from SPHINX-MHD, a suite of cosmological radiation-magnetohydrodynamics simulations designed to study the impact of primordial magnetic fields (PMFs) on galaxy formation and the evolution of the intergalactic medium during the epoch of reionization. The simulations are among the first to employ on-the-fly radiation transfer and constrained transport ideal MHD in a cosmological context to simultaneously model the inhomogeneous process of reionization and the growth of PMFs. …”