What is the background density of dark matter?

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SUMMARY

The discussion centers on the background density of dark matter (DM) in regions far from superclusters, highlighting that the average DM density is approximately 1 GeV/m³. It emphasizes that DM is unevenly distributed, primarily forming filaments, with significantly lower densities outside these structures. Participants inquire about ΛCDM theoretical papers that provide graphical predictions of DM distribution, specifically relating to the fraction of DM within the densest regions of space.

PREREQUISITES
  • Understanding of dark matter concepts and its role in cosmology.
  • Familiarity with the ΛCDM model and its implications for cosmic structure.
  • Knowledge of density measurements in astrophysics, particularly in GeV/m³.
  • Ability to interpret scientific graphs and data related to DM distribution.
NEXT STEPS
  • Research ΛCDM theoretical papers on dark matter distribution models.
  • Explore graphical representations of DM density in cosmological studies.
  • Investigate the implications of filamentary structures on DM density.
  • Study the methods for measuring cosmic density variations in astrophysical contexts.
USEFUL FOR

Astronomers, cosmologists, and astrophysicists interested in dark matter distribution and its implications for the structure of the universe.

BillSaltLake
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Far from any superclusters, is there a background of DM which hasn't yet clumped (at least to any great extent)? What is its density compared to the average DM density (which I think averages about 1 GeV/m3 in the present)?
 
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Would there be any ΛCDM theoretical papers that give predictions on the DM distribution in the form of a graph, such as X= percent; Y= fraction of DM lying within the densest X percent of space?
 

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