activity
20052017
most citedUpper limits on the 21-cm Epoch of Reionization power spectrum from one night with LOFAR

290 citations · 3.2k across the 34 of their papers we have counts for

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5 papers · 1 filter

astro-ph2008★ 106 cited

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…

astro-ph2008★ 60 cited

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…

astro-ph2008★ 269 cited

Foreground simulations for the LOFAR - Epoch of Reionization Experiment

Vibor Jelic, Saleem Zaroubi, Panagiotis Labropoulos +10

Future high redshift 21-cm experiments will suffer from a high degree of contamination, due both to astrophysical foregrounds and to non-astrophysical and instrumental effects. In…

astro-ph2007★ 15 cited

Constraints on sigma_8 from galaxy clustering in N-body simulations and semi-analytic models

Geraint Harker, Shaun Cole, Adrian Jenkins

We generate mock galaxy catalogues for a grid of different cosmologies, using rescaled N-body simulations in tandem with a semi-analytic model run using consistent parameters. Beca…

astro-ph2005★ 236 cited

A marked correlation function analysis of halo formation times in the Millennium Simulation

Geraint Harker, Shaun Cole, John Helly +2

We study the environmental dependence of the formation epoch of dark matter haloes in the Millennium Simulation: a ten billion particle N-body simulation of standard LambdaCDM cosm…