The Einasto profile is a mathematical function used to describe the density distribution of dark matter in galaxies and galaxy clusters, characterized by its smooth, exponential decline. This profile provides a more accurate representation of the density of dark matter compared to the traditional Navarro-Frenk-White (NFW) profile, particularly at large radii. It plays a critical role in understanding the distribution and structure of dark matter halos, which is essential for interpreting observational evidence related to dark matter.
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