Detailed Information on Publication Record
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.