Mass currents in astrophysics generate gravitomagnetic fields of enormous complexity. Gravitomagnetichelicity, in direct analogy with magnetic helicity, is a measure of entwining of the gravitomagnetic fieldlines. We discuss gravitomagnetic helicity within the gravitoelectromagnetic (GEM) framework oflinearized general relativity. Furthermore, we employ the spacetime curvature approach to GEM in orderto determine the gravitomagnetic helicity for static observers in Kerr spacetime.
Gravitomagnetic Helicity
Bini D
Membro del Collaboration Group
;
2022
Abstract
Mass currents in astrophysics generate gravitomagnetic fields of enormous complexity. Gravitomagnetichelicity, in direct analogy with magnetic helicity, is a measure of entwining of the gravitomagnetic fieldlines. We discuss gravitomagnetic helicity within the gravitoelectromagnetic (GEM) framework oflinearized general relativity. Furthermore, we employ the spacetime curvature approach to GEM in orderto determine the gravitomagnetic helicity for static observers in Kerr spacetime.File in questo prodotto:
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