A Gravitational Mechanism for the Acceleration of Ultrarelativistic Particles

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A Gravitational Mechanism for the Acceleration of Ultrarelativistic Particles

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/8508

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Title: A Gravitational Mechanism for the Acceleration of Ultrarelativistic Particles
Author: Chicone, Carmen Charles; Mashhoon, Bahram
Date: 2005-03-25
Publisher: arXiv
Citation: arXiv:astro-ph/0502560v2
Abstract: 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 coordinate system constructed along its worldline, the particles in the swarm that move along the radial direction and are ultrarelativistic (that is, they have speeds above c/sqrt(2)) decelerate toward this terminal speed. On the other hand, the swarm particles that are ultrarelativistic and move in directions normal to the radial (jet) directions accelerate to almost the speed of light by the gravitational tidal force of the mass M. The implications of these effects as well as the influence of the higher-order terms on the tidal acceleration mechanism are investigated. The observational evidence in support of these general relativistic effects is briefly discussed.
URI: http://hdl.handle.net/10355/8508

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