• Publications
  • Influence
Cosmological radiative transfer codes comparison project – I. The static density field tests
Radiative transfer (RT) simulations are now at the forefront of numerical astrophysics. They are becoming crucial for an increasing number of astrophysical and cosmological problems; at the same timeExpand
Simulating Cosmic Reionization at Large Scales I: the Geometry of Reionization
We present the first large-scale radiative transfer simulat ions of cosmic reionization, in a simulation volume of (100 h 1 Mpc) 3 . This is more than a 2 orders of magnitude improvement overExpand
A comparative study of disc–planet interaction
We perform numerical simulations of a disc-planet system using various grid-based and smoothed particle hydrodynamics (SPH) codes. The tests are run for a simple setup where Jupiter and Neptune massExpand
Self-regulated reionization
Recently, we have presented the first, truly large-scale radiative transfer simulations of inhomogeneous cosmic reionization which resolve all the possible halo sources down to the dwarf galaxy massExpand
C2-ray: A new method for photon-conserving transport of ionizing radiation
Abstract We present a new numerical method for calculating the transfer of ionizing radiation, called C2-ray (conservative, causal ray-tracing method). The transfer of ionizing radiation in diffuseExpand
On expansion parallax distances for planetary nebulae
The distances to individual wind-driven bubbles such as Planetary Nebulae (PNe) can be determined using expansion parallaxes: the angular expansion velocity in the sky is compared to the radialExpand
Halting type I planet migration in non-isothermal disks
Aims. We investigate the effect of including a proper energy balance on the interaction of a low-mass planet with a protoplanetary disk. Methods. We use a three-dimensional version of the RODEOExpand
Dust flow in gas disks in the presence of embedded planets
Aims. We study the dynamics of gas and dust in a protoplanetary disk in the presence of embedded planets. We investigate the conditions for dust-gap formation in terms of particle size and planetaryExpand
The Inhomogeneous Background Of H2-Dissociating Radiation During Cosmic Reionization
The first, self-consistent calculations are presented of the cosmological, H2-dissociating UV background produced during the epoch of reionization by the sources of reionization. Large-scaleExpand
On the use of Lyα emitters as probes of reionization
We use numerical simulations to study the effects of the patchiness of a partly reionized intergalactic medium (IGM) on the observability of Lyα emitters (LAEs) at high redshifts (z ≳ 6). We presentExpand