QPOs from charged particles around magnetized black holes in braneworlds

IF 4.2 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2024-10-27 DOI:10.1140/epjc/s10052-024-13463-5

Javlon Rayimbaev, Sardor Murodov, Abubakir Shermatov, Amirkhon Yusupov

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Abstract

Quasiperiodic oscillations (QPOs) are a powerful tool for testing gravity theories, probing gravitational and electromagnetic field properties, and obtaining constraints on the black hole and field parameters. This work considers charged particle dynamics near uniformly magnetized black holes in braneworlds. First, we obtain the solution of the Maxwell equation for magnetic fields and calculate the radial and angular magnetic field components. We derive and analyze the effective potential of charged particles for circular orbits and investigate the energy and angular momentum for the circular orbits. We also analyze the combined effects of magnetic interaction and braneworlds on the charged particles’ innermost stable circular orbits (ISCOs). We calculate the angular momentum of charged particles in Keplerian orbits in the presence of an external magnetic field and braneworlds. Also, we investigate frequencies of the particle oscillations along vertical and angular directions. We applied our studies on particle oscillations to the QPO studies in the relativistic precession model. Finally, we obtain constraints on magnetic interaction and braneworld parameters together with the black hole mass and QPO orbits using Monte Carlo Markov Chain (MCMC) simulation in the four-dimensional parameter space for the QPOs observed in the microquasars XTE J1550-564, GRO J1655-40 & GRS 1915-105, and at the center of galaxies M82 and Milky Way.

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来自支链世界磁化黑洞周围带电粒子的 QPOs

准周期振荡（QPOs）是检验引力理论、探测引力场和电磁场特性以及获得黑洞和场参数约束的有力工具。这项研究考虑了支链世界中均匀磁化黑洞附近的带电粒子动力学。首先，我们获得了麦克斯韦磁场方程的解，并计算了径向和角向磁场分量。我们推导并分析了圆轨道带电粒子的有效势能，并研究了圆轨道的能量和角动量。我们还分析了磁相互作用和支离世界对带电粒子最内层稳定圆轨道（ISCO）的综合影响。我们计算了开普勒轨道上的带电粒子在外部磁场和支链寰宇存在下的角动量。此外，我们还研究了粒子沿垂直方向和角度方向的振荡频率。我们将对粒子振荡的研究应用于相对论前冲模型中的 QPO 研究。最后，我们利用蒙特卡洛马尔可夫链（MCMC）模拟在四维参数空间中观测到的微类星体XTE J1550-564、GRO J1655-40 & GRS 1915-105以及星系M82和银河系中心的QPO，获得了磁相互作用和支链寰宇参数以及黑洞质量和QPO轨道的约束。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.