Gravitomagnetic Jets

Details Gravitomagnetic Jets Gravitomagnetic Jets

2010-05-09

arxiv.org/abs/1005.1420v5

Phys.Rev.D83:064013,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

47 pages, 8 figures; v2: minor improvements; v3: paragraph added at the end of Sec. V and other minor improvements; v4: refere

Scientific paper

10.1103/PhysRevD.83.064013

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 up and down parallel to the axis of cylindrical symmetry and are reminiscent of the motion of test charges in a magnetic field. The speed of a test particle in a gravitomagnetic jet asymptotically approaches the speed of light. Moreover, numerical evidence suggests that jets are attractors. The possible implications of our results for the role of gravitomagnetism in the formation of astrophysical jets are briefly discussed.

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