J 2024

Charged particles and quasiperiodic oscillations in Black-bounce-Reissner-Nordström geometry in braneworlds

MITRA, Samik; Jaroslav VRBA; Javlon RAYIMBAEV; Zdeněk STUCHLÍK; Bobomurat AHMEDOV et. al.

Basic information

Original name

Charged particles and quasiperiodic oscillations in Black-bounce-Reissner-Nordström geometry in braneworlds

Authors

MITRA, Samik; Jaroslav VRBA (203 Czech Republic, belonging to the institution); Javlon RAYIMBAEV (860 Uzbekistan); Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution) and Bobomurat AHMEDOV (860 Uzbekistan)

Edition

Physics of the Dark Universe, 2024, 2212-6864

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10308 Astronomy

Country of publisher

Netherlands

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 6.400

RIV identification code

RIV/47813059:19630/24:A0000349

Organization unit

Institute of physics in Opava

DOI

https://doi.org/10.1016/j.dark.2024.101561

UT WoS

001266539200001

EID Scopus

2-s2.0-85197434147

Keywords in English

Black bounce;Quasiperiodic oscillations;Charged black holes;Charged particles;Braneworlds

Tags

RIV25

Tags

International impact, Reviewed

Links

GA23-07043S, research and development project.
Changed: 4/2/2025 12:01, Mgr. Pavlína Jalůvková

Abstract

In the original language

We study the dynamics and oscillations of electrically charged particles along stable circular orbits around a nonrotating electrically charged spacetime. In this work, we consider a regularized Reissner-Nordstr & ouml;m (RN) spacetime under the transformation r (2) -> r( 2) + l( 2) , known as the black-bounce-RN (or Simpson-Visser RN) spacetime, which can represent both a black hole and a wormhole depending on the values of 1 , in the presence of braneworld effects. In our analyses, we introduce a new parameter that shows a similar gravitational effect, which includes electric ( Q ) and tidal charges ( B ) of the spacetime as b = Q( 2) + B . We investigate the horizon properties of the spacetime and estimate the parametric distributions that describe a black hole and a wormhole. Furthermore, we analyze the effective potential of the particles and the critical angular momentum for the cases dominated by the tidal charge b < 0 and the electric charge b > 0 , respectively. Moreover, we apply the epicyclic frequencies in the relativistic precession model to fit twin high-frequency (HF) quasiperiodic oscillations (QPOs) observed in microquasars and active galactic nuclei. Finally, we apply a Monte Carlo Markov Chain (MCMC) simulation to constrain the multidimensional parameter space for the microquasars GRO J1655-40 & GRS 1915-105 and the galactic center, for being a black hole and wormhole candidate using observational data from QPOs. Our findings suggest that the central object of the Milky Way and the microquasars GRS 1915-105 may be a black hole and a wormhole with certain parameters. However, there are no constraints for the microquasar GRO J1655-40 obtained regarding the wormhole case. It implies that the central object fails to be a candidate for being a wormhole in the black-bounce charged spacetimes in the braneworlds model.
Displayed: 23/9/2025 06:03