Detailed Information on Publication Record
2021
Epicyclic orbits in the field of Einstein-Dirac-Maxwell traversable wormholes applied to the quasiperiodic oscillations observed in microquasars and active galactic nuclei
STUCHLÍK, Zdeněk and Jaroslav VRBABasic information
Original name
Epicyclic orbits in the field of Einstein-Dirac-Maxwell traversable wormholes applied to the quasiperiodic oscillations observed in microquasars and active galactic nuclei
Authors
STUCHLÍK, Zdeněk (203 Czech Republic, belonging to the institution) and Jaroslav VRBA (203 Czech Republic, belonging to the institution)
Edition
European Physical Journal Plus, 2021, 2190-5444
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/47813059:19630/21:A0000132
Organization unit
Institute of physics in Opava
UT WoS
000716950300002
Keywords in English
FREQUENCIES;RESONANCE
Tags
International impact, Reviewed
Změněno: 15/3/2022 08:26, Mgr. Pavlína Jalůvková
Abstract
V originále
We study the epicyclic oscillatory motion around circular orbits of the traversable asymptotically flat and reflection-symmetric wormholes obtained in the Einstein-Dirac-Maxwell theory without applying exotic matter in their construction. We determine frequencies of the orbital and epicyclic motion in the Keplerian disks having inner edge at the marginally stable circular geodesic of the spacetime. The obtained frequencies are applied in the so-called geodesic models of high-frequency quasiperiodic oscillations (HF QPOs) observed in microquasars and active galactic nuclei containing a supermassive central object. We show that even the simplest epicyclic resonance variant of the geodesic models can explain the HF QPOs observed in many active galactic nuclei for realistic choices of the wormhole parameters, but there are some of the sources where only wormholes with unrealistically large values of the parameters can be sufficient for the explanation. On the other hand, in the case of microquasars, the observed HF QPOs strongly restrict the acceptable values of the wormhole parameters.