Search Results - "Pawlik, Andreas"
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1
On the evolution of the H i column density distribution in cosmological simulations
Published in Monthly notices of the Royal Astronomical Society (11-04-2013)“…We use a set of cosmological simulations combined with radiative transfer calculations to investigate the distribution of neutral hydrogen in the…”
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The Aurora radiation-hydrodynamical simulations of reionization: calibration and first results
Published in Monthly notices of the Royal Astronomical Society (01-04-2017)“…We introduce a new suite of radiation-hydrodynamical simulations of galaxy formation and reionization called Aurora. The Aurora simulations make use of a…”
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Radiative feedback from high-mass X-ray binaries on the formation of the first galaxies and early reionization
Published in Monthly notices of the Royal Astronomical Society (01-06-2014)“…Recent work suggests that the first generation of stars, the so-called Population III (Pop III), could have formed primarily in binaries or as members of small…”
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Spatially adaptive radiation-hydrodynamical simulations of galaxy formation during cosmological reionization
Published in Monthly notices of the Royal Astronomical Society (01-08-2015)“…We present a suite of cosmological radiation-hydrodynamical simulations of the assembly of galaxies driving the reionization of the intergalactic medium (IGM)…”
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The impact of local stellar radiation on the H i column density distribution
Published in Monthly notices of the Royal Astronomical Society (21-05-2013)“…It is often assumed that local sources of ionizing radiation have little impact on the distribution of neutral hydrogen in the post-reionization Universe…”
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THE FIRST GALAXIES: ASSEMBLY UNDER RADIATIVE FEEDBACK FROM THE FIRST STARS
Published in The Astrophysical journal (10-04-2013)“…We investigate how radiative feedback from the first stars affects the assembly of the first dwarf galaxies. To this end, we perform cosmological zoomed…”
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The first galaxies: simulating their feedback-regulated assembly
Published in Monthly notices of the Royal Astronomical Society (11-09-2015)“…We investigate the formation of a galaxy reaching a virial mass of ≈108 M⊙ at z ≈ 10 by carrying out a zoomed radiation-hydrodynamical cosmological simulation…”
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Keeping the Universe ionized: photoheating and the clumping factor of the high-redshift intergalactic medium
Published in Monthly notices of the Royal Astronomical Society (21-04-2009)“…The critical star formation rate (SFR) density required to keep the intergalactic hydrogen ionized depends crucially on the average rate of recombinations in…”
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traphic– radiative transfer for smoothed particle hydrodynamics simulations
Published in Monthly notices of the Royal Astronomical Society (11-09-2008)“…We present traphic, a novel radiative transfer scheme for smoothed particle hydrodynamics (SPH) simulations. traphic is designed for use in simulations…”
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10
Multifrequency, thermally coupled radiative transfer with traphic: method and tests
Published in Monthly notices of the Royal Astronomical Society (11-04-2011)“…We present an extension of traphic, the method for radiative transfer of ionizing radiation in smoothed particle hydrodynamics simulations that we introduced…”
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THE SOURCE DENSITY AND OBSERVABILITY OF PAIR-INSTABILITY SUPERNOVAE FROM THE FIRST STARS
Published in The Astrophysical journal (10-08-2012)“…Theoretical models predict that some of the first stars ended their lives as extremely energetic pair-instability supernovae (PISNe). With energies approaching…”
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The First Galaxies: Assembly of Disks and Prospects for Direct Detection
Published in The Astrophysical journal (10-04-2011)“…The James Webb Space Telescope (JWST) will enable observations of galaxies at redshifts z 10 and hence allow us to test our current understanding of structure…”
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13
THE FIRST GALAXIES: ASSEMBLY WITH BLACK HOLE FEEDBACK
Published in The Astrophysical journal (20-07-2012)“…We study how the first galaxies were assembled under feedback from the accretion onto a central black hole (BH) that is left behind by the first generation of…”
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CANDELS: THE CONTRIBUTION OF THE OBSERVED GALAXY POPULATION TO COSMIC REIONIZATION
Published in The Astrophysical journal (20-10-2012)“…We present measurements of the specific ultraviolet luminosity density from a sample of 483 galaxies at 6 [< or ~] z [< or ~] 8. These galaxies were selected…”
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15
Photoheating and supernova feedback amplify each other's effect on the cosmic star formation rate
Published in Monthly notices of the Royal Astronomical Society. Letters (11-06-2009)“…ABSTRACT Photoheating associated with reionization and kinetic feedback from core‐collapse supernovae have previously been shown to suppress the high‐redshift…”
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The mutual interaction between Population III stars and self-annihilating dark matter
Published in Monthly notices of the Royal Astronomical Society (11-06-2014)“…We use cosmological simulations of high-redshift minihaloes to investigate the effect of dark matter annihilation (DMA) on the collapse of primordial gas. We…”
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Recovery from Population III supernova explosions and the onset of second-generation star formation
Published in Monthly notices of the Royal Astronomical Society (11-11-2014)Get full text
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Power spectrum extraction for redshifted 21-cm Epoch of Reionization experiments: the LOFAR case
Published in Monthly notices of the Royal Astronomical Society (11-07-2010)“…One of the aims of the Low Frequency Array (LOFAR) Epoch of Reionization (EoR) project is to measure the power spectrum of variations in the intensity of…”
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The effect of recombination radiation on the temperature and ionization state of partially ionized gas
Published in Monthly notices of the Royal Astronomical Society (01-01-2014)“…A substantial fraction of all ionizing photons originate from radiative recombinations. However, in radiative transfer calculations this recombination…”
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Fast large-scale reionization simulations
Published in Monthly notices of the Royal Astronomical Society (2009)“…We present an efficient method to generate large simulations of the epoch of reionization without the need for a full three-dimensional radiative transfer…”
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