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Oscillation Dynamics Around Slowly Rotating Disformal Kerr Black Hole.

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Τίτλος: Oscillation Dynamics Around Slowly Rotating Disformal Kerr Black Hole.
Συγγραφείς: Bouzenada, Abdelmalek1,2 (AUTHOR) abdelmalekbouzenada@gmail.com, Donmez, Orhan3 (AUTHOR) orhan.donmez@aum.edu.kw, Shakir, Imran4 (AUTHOR) mshakir@iu.edu.sa, Güdekli, Ertan5 (AUTHOR) gudekli@istanbul.edu.tr, Rakhimova, Gulzoda6,7 (AUTHOR) rakhimovagulzoda96@gmail.com, Atamurotov, Farruh8,9 (AUTHOR) atamurotov@yahoo.com
Πηγή: International Journal of Geometric Methods in Modern Physics. Jul2026, p1. 22p.
Θεματικοί όροι: *Kerr black holes, *Particle dynamics analysis, *Oscillations, *Gravitation, *Orbits (Astronomy), *Dynamic stability, *Gravitational potential, *Frequencies of oscillating systems
Περίληψη: In this paper, we conduct a comprehensive analysis of test particle dynamics measurements in the spacetime of slowly rotating disformal Kerr black hole (BH) models. Also, the characteristics of circular motion near these BHs are systematically investigated, and the corresponding effective potential is computed to assess the stability of particle orbits under various disformal parameter regimes. Linear perturbations around stable circular trajectories are introduced to derive the harmonic oscillation frequencies, which are subsequently expressed in terms of measurements by distant static observers. Also, the impact of the disformal deformation on orbital stability, radial and vertical epicyclic frequencies, and potential astrophysical observables is rigorously quantified. In this context, our analysis demonstrates that even minor departures from the standard Kerr geometry induce measurable modifications in orbital parameters and characteristic frequencies, establishing a theoretical framework for observational tests of disformal BH spacetimes. Also, these results show the effects of modified gravity on relativistic particle motion and offer guidance for designing observational strategies capable of constraining deviations from general relativity in the strong-field regime. [ABSTRACT FROM AUTHOR]
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An: 195577291
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  Data: Oscillation Dynamics Around Slowly Rotating Disformal Kerr Black Hole.
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  Data: <searchLink fieldCode="AR" term="%22Bouzenada%2C+Abdelmalek%22">Bouzenada, Abdelmalek</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> abdelmalekbouzenada@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Donmez%2C+Orhan%22">Donmez, Orhan</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> orhan.donmez@aum.edu.kw</i><br /><searchLink fieldCode="AR" term="%22Shakir%2C+Imran%22">Shakir, Imran</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> mshakir@iu.edu.sa</i><br /><searchLink fieldCode="AR" term="%22Güdekli%2C+Ertan%22">Güdekli, Ertan</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> gudekli@istanbul.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Rakhimova%2C+Gulzoda%22">Rakhimova, Gulzoda</searchLink><relatesTo>6,7</relatesTo> (AUTHOR)<i> rakhimovagulzoda96@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Atamurotov%2C+Farruh%22">Atamurotov, Farruh</searchLink><relatesTo>8,9</relatesTo> (AUTHOR)<i> atamurotov@yahoo.com</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Geometric+Methods+in+Modern+Physics%22">International Journal of Geometric Methods in Modern Physics</searchLink>. Jul2026, p1. 22p.
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– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, we conduct a comprehensive analysis of test particle dynamics measurements in the spacetime of slowly rotating disformal Kerr black hole (BH) models. Also, the characteristics of circular motion near these BHs are systematically investigated, and the corresponding effective potential is computed to assess the stability of particle orbits under various disformal parameter regimes. Linear perturbations around stable circular trajectories are introduced to derive the harmonic oscillation frequencies, which are subsequently expressed in terms of measurements by distant static observers. Also, the impact of the disformal deformation on orbital stability, radial and vertical epicyclic frequencies, and potential astrophysical observables is rigorously quantified. In this context, our analysis demonstrates that even minor departures from the standard Kerr geometry induce measurable modifications in orbital parameters and characteristic frequencies, establishing a theoretical framework for observational tests of disformal BH spacetimes. Also, these results show the effects of modified gravity on relativistic particle motion and offer guidance for designing observational strategies capable of constraining deviations from general relativity in the strong-field regime. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1142/s0219887826503068
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 22
        StartPage: 1
    Subjects:
      – SubjectFull: Kerr black holes
        Type: general
      – SubjectFull: Particle dynamics analysis
        Type: general
      – SubjectFull: Oscillations
        Type: general
      – SubjectFull: Gravitation
        Type: general
      – SubjectFull: Orbits (Astronomy)
        Type: general
      – SubjectFull: Dynamic stability
        Type: general
      – SubjectFull: Gravitational potential
        Type: general
      – SubjectFull: Frequencies of oscillating systems
        Type: general
    Titles:
      – TitleFull: Oscillation Dynamics Around Slowly Rotating Disformal Kerr Black Hole.
        Type: main
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    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Bouzenada, Abdelmalek
      – PersonEntity:
          Name:
            NameFull: Donmez, Orhan
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          Name:
            NameFull: Shakir, Imran
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            NameFull: Güdekli, Ertan
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            NameFull: Rakhimova, Gulzoda
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            NameFull: Atamurotov, Farruh
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          Dates:
            – D: 24
              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 02198878
          Titles:
            – TitleFull: International Journal of Geometric Methods in Modern Physics
              Type: main
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