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Photo-heating and supernova feedback amplify each other's effect on the cosmic star formation rate
Andreas H. Pawlik, Joop Schaye
Photo-heating associated with reionisation and kinetic feedback from core-collapse supernovae have previously been shown to suppress the high-redshift cosmic star formation rate. H…
Fast Large-Scale Reionization Simulations
Rajat M. Thomas, Saleem Zaroubi, Benedetta Ciardi +12
We present an efficient method to generate large simulations of the Epoch of Reionization (EoR) without the need for a full 3-dimensional radiative transfer code. Large dark-matter…
Detection and extraction of signals from the epoch of reionization using higher order one-point statistics
Geraint J. A. Harker, Saleem Zaroubi, Rajat M. Thomas +13
Detecting redshifted 21cm emission from neutral hydrogen in the early Universe promises to give direct constraints on the epoch of reionization (EoR). It will, though, be very chal…
Keeping the Universe ionised: Photo-heating and the clumping factor of the high-redshift intergalactic medium
Andreas H. Pawlik, Joop Schaye, Eveline van Scherpenzeel
The critical star formation rate density required to keep the intergalactic hydrogen ionised depends crucially on the average rate of recombinations in the intergalactic medium (IG…
The effect of photo-ionization on the cooling rates of enriched, astrophysical plasmas
Robert P. C. Wiersma, Joop Schaye, Britton D. Smith
Radiative cooling is central to a wide range of astrophysical problems. Despite its importance, cooling rates are generally computed using very restrictive assumptions, such as col…
Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
Alan R. Duffy, Joop Schaye, Scott T. Kay +1
We use a combination of three large N-body simulations to investigate the dependence of dark matter halo concentrations on halo mass and redshift in the WMAP year 5 cosmology. The…