353 citations · 864 across the 5 of their papers we have counts for
5 papers
Photo-heating and the fate of hard photons during the reionisation of HeII by quasars
James S. Bolton, S. Peng Oh, Steven R. Furlanetto
We use a combination of analytic and numerical arguments to consider the impact of quasar photo-heating during HeII reionisation on the thermal evolution of the intergalactic mediu…
An improved measurement of the flux distribution of the Ly-alpha forest in QSO absorption spectra: the effect of continuum fitting, metal contamination and noise properties
T. -S. Kim, J. S. Bolton, M. Viel +2
We have performed an extensive Voigt profile analysis of the neutral hydrogen (HI) and metal absorption present in a sample of 18 high resolution, high signal-to-noise QSO spectra…
Possible evidence for an inverted temperature-density relation in the intergalactic medium from the flux distribution of the Lyman-alpha forest
J. S. Bolton, M. Viel, T. -S. Kim +2
We compare the improved measurement of the Lya forest flux probability distribution at 1.7<z<3.2 presented by Kim et al. (2007) to a large set of hydrodynamical simulations of the…
The observed ionization rate of the intergalactic medium and the ionizing emissivity at z >5: Evidence for a photon starved and extended epoch of reionization
James S. Bolton, Martin G. Haehnelt
We use a large set of hydrodynamical simulations, combined with measurements of the Lyman alpha opacity of the IGM taken from the literature, to obtain robust estimates for the pho…
The nature and evolution of the highly ionized near-zones in the absorption spectra of z~6 quasars
James S. Bolton, Martin G. Haehnelt
We use state-of-the-art hydrodynamical simulations combined with a 1D radiative transfer code to assess the extent to which the highly ionized regions observed close to z~6 quasars…