Phase-space distribution of unbound dark matter near the Sun

摘要: We resolve discrepancies in previous analyses of the flow collisionless dark matter particles Sun's gravitational field. determine phase-space distribution both numerically, tracing particle trajectories back time, and analytically, providing a simple correct relation between velocity at infinity Earth. use our results to produce sky maps arrival directions on Earth various times year. assume Maxwellian distributions describing standard halo streams matter. illustrate formation ring, analogous Einstein when is directly downstream Sun.