Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical properties of Kerr-Newman spacetime in the presence of plasma   We have studied the null geodesics in the background of the Kerr-Newman black
hole veiled by a plasma medium using the Hamilton-Jacobi method. The in uence
of black hole's charge and plasma parameters on the effective potential and the
generic photon orbits has been investigated. Furthermore, our discussion
embodies the effects of black hole's charge, plasma and the inclination angle
on the shadow cast by the gravity with and without the spin parameter. We
examined the energy released from the black hole as a result of the thermal
radiations, which exclusively depends on the size of the shadow. The angle of
de ection of the massless particles is also explored considering a weak-field
approximation.We present our results in juxtaposition to the analogous black
holes in General Relativity, particularly the Schwarzschild and Kerr black
hole.

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The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph