We introduce the thesan project, a suite of large volume () radiation-magnetohydrodynamic
simulations that simultaneously model the large-scale statistical properties of the …

We introduce the Astrid simulation, a large-scale cosmological hydrodynamic simulation in a
box with 2× 55003 particles. Astrid contains a large number of high redshift galaxies, which …

The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly
becoming the new frontier of extragalactic astronomy. We investigate the IGM properties and …

Abstract Recently, the Hydrogen Epoch of Reionization Array (HERA) has produced the
experiment's first upper limits on the power spectrum of 21 cm fluctuations at z∼ 8 and 10 …

We compare a sample of five high-resolution, high S/N Ly α forest spectra of bright 6< z<∼
6.5 QSOs aimed at spectrally resolving the last remaining transmission spikes at z> 5 with …

We present a Bayesian inference on the neutral hydrogen fraction of the intergalactic
medium (IGM),, at z∼ 6–8 using the properties of Lyman break galaxies (LBGs) during the …

Previous studies have noted difficulties in modelling the highest opacities of the z> 5.5 Ly α
forest, epitomized by the extreme Lyα trough observed towards quasar ULAS J0148+ 0600 …

Recent measurements of the ionizing photon mean free path (λ mfp 912) at 5< z< 6 suggest
that the IGM was rapidly evolving at those times. We use radiative transfer simulations to …

Multiple observations now suggest that the hydrogen reionization may have ended well
below redshift six. While there has previously been no conclusive proof of extended neutral …

Stars stripped of their envelopes from interaction with a binary companion emit a significant
fraction of their radiation as ionizing photons. They are potentially important stellar sources …