An analytical description of substructure-induced gravitational perturbations in stellar systems
M Sten Delos
Abstract:Perturbations to stellar systems can reflect the gravitational influence of dark matter substructures. On scales much smaller than the size of a stellar system, we point out analytic connections between the stellar and dark matter distributions. In particular, the density and velocity power spectra of the stars are proportional to the density power spectrum of the perturbing dark matter, scaled by k−4. This relationship allows easy evaluation of the suitability of a stellar system for detecting dark substructu… Show more
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