Tidal Forces in Dyonic Reissner-Nrdstrom Black Hole |
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摘 要: | This paper investigates the tidal as well as magnetic charge effects produced in dyonic Reissner-Nordstr¨om black hole.We evaluate Newtonian radial acceleration using radial geodesics for freely falling test particles.We establish system of equations governing radial and angular tidal forces using geodesic deviation equation and discuss their solutions for bodies falling freely towards this black hole.The radial tidal force turns out to be compressing outside the event horizon whereas the angular tidal force changes sign between event and Cauchy horizons unlike Schwarzschild black hole.The radial geodesic component starts decreasing in dyonic Reissner-Nordstr¨om black hole unlike Schwarzschild case.We conclude that magnetic charge strongly affects the radial as well as angular components of tidal force.
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收稿时间: | 2017-10-30 |
Tidal Forces in Dyonic Reissner-Nördstrom Black Hole |
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Authors: | MSharif Lubna Kousar |
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Institution: | Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan |
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Abstract: | This paper investigates the tidal as well as magnetic charge effects produced in dyonic Reissner-Nordström black hole. We evaluate Newtonian radial acceleration using radial geodesics for freely falling test particles. We establish system of equations governing radial and angular tidal forces using geodesic deviation equation and discuss their solutions for bodies falling freely towards this black hole. The radial tidal force turns out to be compressing outside the event horizon whereas the angular tidal force changes sign between event and Cauchy horizons unlike Schwarzschild black hole. The radial geodesic component starts decreasing in dyonic Reissner-Nordström black hole unlike Schwarzschild case. We conclude that magnetic charge strongly affects the radial as well as angular components of tidal force. |
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Keywords: | dyonic black hole tidal forces geodesics |
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