Beyond Gravitoelectromagnetism: Critical Speed in Gravitational Motion
arXiv:astro-ph/0510002 · doi:10.1142/S0218271805008121
Abstract
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.
13 pages, to appear in the Special December 2005 Issue of Int. J. Mod. Phys. D
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