Polarized images of charged particles in vortical motions around a magnetized Kerr black hole
Abstract
In this work, we study the images of a Kerr black hole (BH) immersed in uniform magnetic fields, illuminated by the synchrotron radiation of charged particles in the jet. We particularly focus on the spontaneously vortical motions (SVMs) of charged particles in the jet region and investigate the polarized images of electromagnetic radiations from the trajectories along SVMs. We notice that there is a critical value ω_c for charged particle released at a given initial position and subjected an outward force, and once |qB_0/m|=|ω_B|>|ω_c| charged particles can move along SVMs in the jet region. We obtain the polarized images of the electromagnetic radiations from the trajectories along SVMs. Our simplified model suggests that the SVM radiations can act as the light source to illuminate the BH and form a photon ring structure.
- Publication:
-
Journal of Cosmology and Astroparticle Physics
- Pub Date:
- March 2024
- DOI:
- 10.1088/1475-7516/2024/03/013
- arXiv:
- arXiv:2304.03642
- Bibcode:
- 2024JCAP...03..013Z
- Keywords:
-
- GR black holes;
- gravity;
- General Relativity and Quantum Cosmology;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 25 pages, 8 figures