Why does gravitational radiation produce vorticity?

Abstract

We calculate the vorticity of world--lines of observers at rest in a Bondi--Sachs frame, produced by gravitational radiation, in a general Sachs metric. We claim that such an effect is related to the super--Poynting vector, in a similar way as the existence of the electromagnetic Poynting vector is related to the vorticity in stationary electrovacum spacetimes.

9 pages; to appear in Classical and Quantum Gravity

References in corpus (5)

• Gravito-electromagnetism
• Frame dragging, vorticity and electromagnetic fields in axially symmetric stationary spacetimes
• Can one detect a non-smooth null infinity?
• On the influence of gravitational radiation on a gyroscope
• Gravitational radiation, vorticity and the electric and magnetic part of Weyl tensor

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• The Dynamical Behaviour of Test Particles in a Quasi-Spherical Spacetime and the Physical Meaning of Superenergy
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