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

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.500 in 2022

Organization unit

Institute of physics in Opava

UT WoS

001266539200001

Keywords in English

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

Tags

Tags

International impact, Reviewed

Links

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

Abstract

V originále

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.