Polarized images of charged particles in vortical motions around a magnetized Kerr black hole

In this work, we study the images of a Kerr black hole (BH) immersed in uniform magneticfields, illuminated by the synchrotron radiation of charged particles in the jet. We particularlyfocus on the spontaneously vortical motions (SVMs) of charged particles in the jet region andinvestigate the polarized images of electromagnetic radiations from the trajectories alongSVMs. We notice that there is a critical value ω_c for charged particle released at a giveninitial position and subjected an outward force, and once |qB_0/m|=|ω_B|>|ω_c| chargedparticles can move along SVMs in the jet region. We obtain the polarized images of theelectromagnetic radiations from the trajectories along SVMs. Our simplified model suggests thatthe SVM radiations can act as the light source to illuminate the BH and form a photonring structure.

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25 pages, 8 figures

GR black holes
gravity

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Figures(8)

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