• A Gravitational Mechanism for the Acceleration of Ultrarelativistic Particles 

    Chicone, Carmen Charles; Mashhoon, Bahram (arXiv, 2005-03)
    Imagine a swarm of free particles near a point P outside a gravitating mass M and a free reference particle at P that is on a radial escape trajectory away from M. Relative to this reference particle and in a Fermi normal ...
  • Gravitomagnetic Jets 

    Chicone, Carmen Charles; Mashhoon, Bahram (arXiv, 2010-08)
    We present a family of dynamic rotating cylindrically symmetric Ricci-flat gravitational fields whose geodesic motions have the structure of gravitomagnetic jets. These correspond to helical motions of free test particles ...