author={Bijunath R. Patla and Robert J. Nemiroff and Dieter H. H. Hoffmann and Konstantin Zioutas},
  journal={The Astrophysical Journal},
Slow-moving particles capable of interacting solely with gravity might be detected on Earth as a result of the gravitational lensing induced focusing action of the Sun. The deflection experienced by these particles is inversely proportional to the square of their velocities, and as a result their focal lengths will be shorter. We investigate the velocity dispersion of these slow-moving particles, originating from distant point-like sources, for imposing upper and lower bounds on the velocities… 

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