What is the background density of dark matter?

AI Thread Summary
The discussion explores the existence of a background density of dark matter (DM) beyond superclusters, questioning whether this density is significantly lower than the average DM density of about 1 GeV/m3. It highlights that DM is unevenly distributed, primarily forming filaments, suggesting that regions outside these structures may have reduced density. Participants inquire about ΛCDM theoretical papers that could provide graphical predictions of DM distribution, specifically regarding the fraction of DM within the densest areas. The conversation emphasizes the need for empirical data and theoretical models to better understand DM's distribution in the universe. Overall, the quest for clarity on dark matter's background density remains a significant topic in cosmology.
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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