Effect of plasma on gravitational lensing by a Schwarzschild black hole immersed in perfect fluid dark matter - INSPIRE

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Effect of plasma on gravitational lensing by a Schwarzschild black hole immersed in perfect fluid dark matter

Oct 1, 2021

11 pages

Published in:

Phys.Rev.D 104 (2021) 8, 084015

Published: Oct 1, 2021

DOI:

10.1103/PhysRevD.104.084015 (publication)

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Abstract: (APS)

We have explored the effect of both uniform and nonuniform distributed plasma medium on gravitational lensing around static black hole in the presence of perfect fluid dark matter (PFDM). We have shown that the PFDM and plasma parameters has opposite effect on the change of the value of the deflection angle of the light rays. It has been also shown that PFDM decreases the total magnification of image sources while the plasma causes opposite effect. Finally, we have analyzed the shadow cast by the black hole surrounded by PFDM and plasma. The increase of the PFDM parameter causes the decrease the size of the shadow of black hole.

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