94 citations · 281 across the 6 of their papers we have counts for
6 papers
On the use of semi-numerical simulations in predicting the 21-cm signal from the epoch of reionization
Suman Majumdar, Garrelt Mellema, Kanan K. Datta +4
We present a detailed comparison of three different simulations of the epoch of reionization (EoR). The radiative transfer simulation (-RAY) among them is our benchmark.…
Simulating Cosmic Reionization and the Radiation Backgrounds from the Epoch of Reionization
Paul R. Shapiro, Ilian T. Iliev, Garrelt Mellema +10
Large-scale reionization simulations are described which combine the results of cosmological N-body simulations that model the evolving density and velocity fields and identify the…
Hunting for dark halo substructure using submilliarcsecond-scale observations of macrolensed radio jets
Erik Zackrisson, Saghar Asadi, Kaj Wiik +8
Dark halo substructure may reveal itself through secondary, small-scale gravitational lensing effects on light sources that are macrolensed by a foreground galaxy. Here, we explore…
Prospects of observing a quasar HII region during the Epoch of Reionization with redshifted 21cm
Kanan K. Datta, Martina M. Friedrich, Garrelt Mellema +2
We present a study of the impact of a bright quasar on the redshifted 21cm signal during the Epoch of Reionization (EoR). Using three different cosmological radiative transfer simu…
Radiative transfer of energetic photons: X-rays and helium ionization in C2-Ray
Martina M. Friedrich, Garrelt Mellema, Ilian T. Iliev +1
We present an extension to the short-characteristic ray-tracing and non-equilibrium photon-ionization code C2Ray. The new version includes the effects of helium and improved multi-…
Topology and Sizes of HII Regions during Cosmic Reionization
Martina M. Friedrich, Garrelt Mellema, Marcelo A. Alvarez +2
We use the results of large-scale simulations of reionization to explore methods for characterizing the topology and sizes of HII regions during reionization. We use four independe…