Paper: astro-ph/0510002
Date: Fri, 30 Sep 2005 18:02:44 GMT (22kb)

Title: Beyond Gravitoelectromagnetism: Critical Speed in Gravitational Motion

Authors: Bahram Mashhoon

Categories: astro-ph

Comments: 13 pages, to appear in the Special December 2005 Issue of Int. J.
Mod. Phys. D
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A null ray approaching a distant astronomical source appears to slow down,
while a massive particle speeds up in accordance with Newtonian gravitation.
The integration of these apparently incompatible aspects of motion in general
relativity is due to the existence of a critical speed. Dynamics of particles
moving faster than the critical speed could then be contrary to Newtonian
expectations. Working within the framework of gravitoelectromagnetism, the
implications of the existence of a critical speed are explored. The results are
expected to be significant for high energy astrophysics.

\\ ( http://arXiv.org/abs/astro-ph/0510002 , 22kb)