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2014MNRAS.444.2470W - Mon. Not. R. Astron. Soc., 444, 2470-2486 (2014/November-1)
Rotating gravitational lenses: a kinematic approach.
WALTERS S.J. and FORBES L.K.
Abstract (from CDS):
This paper uses the Kerr geodesic equations for massless particles to derive an acceleration vector in both Boyer-Lindquist and Cartesian coordinates. As a special case, the Schwarzschild acceleration due to a non-rotating mass has a particularly simple and elegant form in Cartesian coordinates. Using forward integration, these equations are used to plot the caustic pattern due to a system consisting of a rotating point mass with a smaller non-rotating planet. Additionally, first- and second-order approximations to the paths are identified, which allows for fast approximations of paths, deflection angles and traveltime delays.
Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)
Journal keyword(s): acceleration of particles - gravitation - gravitational lensing: strong - gravita-tional lensing: micro - methods: numerical - planets and satellites: detection
Simbad objects: 1
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