High-resolution Simulations of the Reionization of an Isolated Milky Way-M31 Galaxy Pair

@article{Ocvirk2013HighresolutionSO,
  title={High-resolution Simulations of the Reionization of an Isolated Milky Way-M31 Galaxy Pair},
  author={Pierre Ocvirk and Dominique Aubert and Jonathan Chardin and Alexander Knebe and Noam I. Libeskind and Stefan Gottlober and Gustavo Yepes and Yehuda Hoffman},
  journal={The Astrophysical Journal},
  year={2013},
  volume={777},
  pages={51}
}
We present the results of a set of numerical simulations aimed at studying reionization at the galactic scale. We use a high-resolution realization of the formation of the Milky Way (MW)-M31 system to simulate the reionization of the Local Group. The reionization calculation was performed with the post-processing radiative transfer code ATON and the underlying cosmological simulation was performed as part of the CLUES project (http://www.clues-project.org). We vary the source models to bracket… 

Figures and Tables from this paper

THE EFFECTS OF PATCHY REIONIZATION ON SATELLITE GALAXIES OF THE MILKY WAY
We combine the high-resolution Aquarius simulations with three-dimensional models of reionization based on the initial density field of the Aquarius parent simulation, Millennium-II, to study the
The reionization of galactic satellite populations
We use high resolution simulations of the formation of the local group post-processed by a radiative transfer code for UV photons, to investigate the reionization of the satellite populations of an
Reionization of the Milky Way, M31, and their satellites I: reionization history and star formation
Observations of the Milky Way (MW), M31, and their vicinity, known as the Local Group (LG), can provide clues about the sources of reionization. We present a suite of radiative transfer simulations
Local reionizations histories with merger tree of HII regions
We constrain the initial stage of the reionization process around progenitors of galaxies, such as the extent of the initial HII region before its fusion with the UV background and the duration of
Self-Consistent Modeling of Reionization in Cosmological Hydrodynamical Simulations
The ultraviolet background (UVB) emitted by quasars and galaxies governs the ionization and thermal state of the intergalactic medium (IGM), regulates the formation of high-redshift galaxies, and is
Reionization Histories of Milky Way Mass Halos
We investigate the connection between the reionization era and the present-day universe by examining the mass reionization histories of z = 0 dark matter halos. In a 6003 Mpc3 volume, we combine a
Impact of the reduced speed of light approximation on ionization front velocities in cosmological simulations of the epoch of reionization
Context. Coupled radiative-hydrodynamics simulations of the epoch of reionization aim to reproduce the propagation of ionization fronts during the transition before the overlap of HII regions. Many
Cosmic Dawn (CoDa): the first radiation-hydrodynamics simulation of reionization and galaxy formation in the Local Universe
Cosmic reionization by starlight from early galaxies affected their evolution, thereby impacting reionization, itself. Star formation suppression, for example, may explain the observed underabundance
Impact of the reduced speed of light approximation on the post-overlap neutral hydrogen fraction in numerical simulations of the epoch of reionization
Context. The reduced speed of light approximation is used in a variety of simulations of the epoch of reionization and galaxy formation. Its popularity stems from its ability to drastically reduce
The hestia project: simulations of the Local Group
We present the hestia simulation suite: High-resolutions Environmental Simulations of The Immediate Area, a set of cosmological simulations of the Local Group. Initial conditions constrained by the
...
...

References

SHOWING 1-10 OF 64 REFERENCES
The Impact of Inhomogeneous Reionization on the Satellite Galaxy Population of the Milky Way
We use the publicly available subhalo catalogs from the via Lactea II simulation along with a Gpc-scale N-body simulation to understand the impact of inhomogeneous reionization on the satellite
Constraining local UV field geometry at reionization using Milky Way satellites
We present a new semi-analytical model of the population of satellite galaxies of the Milky Way, aimed at estimating the effect of the geometry of reionization at galaxy scale on the properties of
A study of simulated reionization histories with merger trees of HII regions
Aims. We describe a new methodology for analyzing the reionization process in numerical simulations. The chronology and the geometry of reionization is investigated by the merger histories of
The late reionization of filaments
We study the topology of reionization using accurate three-dimensional radiative transfer calculations post-processed on outputs from cosmological hydrodynamic simulations. In our simulations,
The population of Milky Way satellites in the LambdaCDM cosmology
We present a model for the satellites of the Milky Way in which galaxy formation is followed using semi-analytic techniques applied to the six high-resolution N-body simulations of galactic halos of
Reionization of the Local Group of galaxies
We present the first detailed structure formation and radiative transfer simulations of the reionization history of our cosmic neighbourhood. To this end, we follow the formation of the Local Group
The structure of reionization in hierarchical galaxy formation models.
Understanding the epoch of reionization and the properties of the first galaxies represents an important goal for modern cosmology. The structure of reionization and hence the observed power spectrum
On the Nature of the Milky Way satellites
We combine a series of high-resolution simulations with semi-analytical galaxy formation models to follow the evolution of a system resembling the Milky Way and its satellites. The semi-analytical
Simulations and analytic calculations of bubble growth during hydrogen reionization
We present results from a large volume simulation of hydrogen reionization. We combine 3D radiative transfer calculations and an N-body simulation, describing structure formation in the intergalactic
REIONIZATION AND THE ABUNDANCE OF GALACTIC SATELLITES
One of the main challenges facing standard hierarchical structure formation models is that the predicted abundance of Galactic subhalos with circular velocities vc ~ 10-30 km s-1 is an order of
...
...