Boosted Kerr black hole in the presence of plasma
arXiv:1907.10221 · doi:10.3390/proceedings2019017006
Abstract
In this work, we obtain the deflection angle for a boosted Kerr black hole in the weak field approximation using the optics in a curved spacetime developed by J.L. Synge in 1960. We study the behavior of light in the presence of plasma by considering different distributions: uniform plasma, singular isothermal sphere, non-singular isothermal gas sphere, and plasma in a galaxy cluster. We found that the dragging of the inertial system along with the boosted parameter affect the value of the deflection angle. As an application, we studied the magnification for both uniform and singular isothermal distributions.
14 pages, 8 figures. Talk given at the meeting "Recent Progress in Relativistic Astrophysics" (6-8 May 2019, Shanghai, China)
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- Comment on "Boosted Kerr black holes in general relativity"