Integrability of Kerr-Newman spacetime with cloud strings, quintessence and electromagnetic field
Wenfu Cao,
Wenfang Liu,
Xin Wu
Abstract:The dynamics of charged particles moving around a Kerr-Newman black hole surrounded by cloud strings, quintessence and electromagnetic field is integrable due to the presence of a fourth constant of motion like the Carter constant. The fourth motion constant and the axial-symmetry of the spacetime give a chance to the existence of radial effective potentials with stable circular orbits in two-dimensional planes, such as the equatorial plane and other nonequatorial planes. They also give a possibility of the pr… Show more
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