The enrichment history of baryons in the Universe

@article{Oppenheimer2007TheEH,
  title={The enrichment history of baryons in the Universe},
  author={Romeel Dav'eBenjamin D. Oppenheimer},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2007},
  volume={374},
  pages={427-435}
}
We present predictions for the cosmic metal budget in various phases of baryons from redshift z = 6 → 0, taken from a cosmological hydrodynamic simulation that includes a well-constrained model for enriched galactic outflows. We find that substantial amounts of metals are found in every baryonic phase at all epochs, with diffuse intergalactic gas dominating the metal budget at early epochs and stars and halo gas dominating at recent epochs. We provide a full accounting of metals in the context… 

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References

SHOWING 1-10 OF 57 REFERENCES
Cosmic evolution of metal densities: the enrichment of the intergalactic medium
By means of chemo-photometric models for galaxies of different morphological types, we have carried out a detailed study of the history of element production by spheroidal and dwarf irregular
Violence in the dark ages
A wide range of observational and theoretical arguments suggest that the universe experienced a period of heating and metal enrichment, most likely from starbursting dwarf galaxies. Using a
Role of clusters of galaxies in the evolution of the metal budget in the universe
Using the guidelines on supernova element production provided by XMM-Newton, we summarize the results of ASCA observations on the element abundance in groups and clusters of galaxies. We show that
Where Are the Baryons
New high-resolution, large-scale cosmological hydrodynamic galaxy formation simulations of a standard cold dark matter model (with a cosmological constant) are utilized to predict the distribution of
Cosmic Histories of Stars, Gas, Heavy Elements, and Dust in Galaxies
We investigate a set of coupled equations that relates the stellar, gaseous, chemical, and radiation contents of the universe averaged over the whole population of galaxies. Using as input the
The physical properties and detectability of reionization-epoch galaxies
We present predictions drawn from cosmological hydrodynamic simulations for the physical, photometric and emission-line properties of galaxies present during the latter stages of reionization from z
Where Are the Missing Cosmic Metals
The majority of the heavy elements produced by stars 2 billion years after the big bang (redshift z ≈ 3) are presently undetected at those epochs. We propose a solution to this cosmic "missing
Cosmological simulations of intergalactic medium enrichment from galactic outflows
We investigate models of self-consistent chemical enrichment of the intergalactic medium (IGM) from z = 6.0 → 1.5, based on hydrodynamic simulations of structure formation that explicitly incorporate
Baryons in the warm-hot intergalactic medium
Approximately 30%-40% of all baryons in the present-day universe reside in a warm-hot intergalactic medium (WHIM), with temperatures in the range 105 < T < 107 K. This is a generic prediction from
The Origin of the Mass-Metallicity Relation: Insights from 53,000 Star-forming Galaxies in the Sloan Digital Sky Survey
We utilize Sloan Digital Sky Survey imaging and spectroscopy of ~53,000 star-forming galaxies at z ~ 0.1 to study the relation between stellar mass and gas-phase metallicity. We derive gas-phase
...
...