{
  "abstract": "We study linear perturbations of static, spherically symmetric solutions of scalar-tensor theories (STT) of gravity from the Bergmann-Wagoner-Nordtvedt class, sourced by nonlinear electrodynamics (NED). We obtain a general expression for the effective potential $$V_\\textrm{eff}$$ V eff governing the perturbation dynamics for theories with arbitrary scalar-electromagnetic interaction of the form $$L(\\psi , F)$$ L ( ψ , F ) , where $$\\psi $$ ψ is a scalar field and $$F = F_{\\mu \\nu }F^{\\mu \\nu }$$ F = F μ ν F μ ν the electromagnetic invariant. This consideration includes, in particular, arbitrary scalar self-interaction potentials and scalar fields that can be phantom in some regions of space-time (the so-called trapped ghosts). Only radial (monopole) perturbations are considered here as the most likely ones to cause an instability. It is shown, in particular, that if NED has a correct Maxwell weak field limit, the zero charge limit of $$V_\\textrm{eff}$$ V eff does not contain any trace of NED, and the perturbation dynamics is the same as for vacuum STT solutions. The previously obtained stability results for STT-Maxwell solutions are shown to be extended without change to STT-NED solutions with equal electric and magnetic charges, implying $$F =0$$ F = 0 . As an example of a solution with $$F\\not \\equiv 0$$ F ≢ 0 , we consider a system with a massless scalar and truncated Born-Infeld NED, both minimally coupled to gravity, in GR, and show that almost all results previously obtained for $$F=0$$ F = 0 are qualitatively preserved.",
  "abstract_shown": true,
  "affiliations": [
    "Rostest",
    "RUDN University",
    "National Research Nuclear University “MEPhI”",
    "Samarkand State University",
    "Karshi State University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Kirill A. Bronnikov",
      "orcid": "0000-0001-9392-7558"
    },
    {
      "affs": [
        3
      ],
      "name": "Rustam Ibadov",
      "orcid": "0000-0003-3841-3575"
    },
    {
      "affs": [
        3,
        4
      ],
      "name": "Feruza Y. Shaymanova",
      "orcid": "0009-0000-0112-2526"
    },
    {
      "affs": [
        3
      ],
      "name": "Najibullokhon M. Shukurullokhon",
      "orcid": "0009-0005-1383-1924"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/841m8gs3hytt4.bib",
  "cited_by": 0,
  "doi": "10.1140/epjc/s10052-026-16469-3",
  "fulltext_url": "https://doi.org/10.1140/epjc/s10052-026-16469-3",
  "id": "841m8gs3hytt4",
  "issns": [
    "1434-6044",
    "1434-6052"
  ],
  "landing_url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16469-3",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QB460-466"
    ],
    [
      "lcc",
      "QC770-798"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
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  "openalex": "W7168235585",
  "pdf_url": "https://link.springer.com/content/pdf/10.1140/epjc/s10052-026-16469-3.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-20",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/841m8gs3hytt4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:04Z",
      "native_id": "10.1140/epjc/s10052-026-16469-3",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16469-3"
    },
    {
      "first_seen": "2026-10-30T13:46:27Z",
      "native_id": "e77eeee543d04382b6313e4496995a03",
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      "url": "https://doi.org/10.1140/epjc/s10052-026-16469-3"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Cosmology and Gravitation Theories",
      "subfield": "cosmology"
    }
  ],
  "title": "Nonlinear electrodynamics and stability of spherically symmetric space-times in scalar-tensor gravity",
  "title_text": "Nonlinear electrodynamics and stability of spherically symmetric space-times in scalar-tensor gravity",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:46:27Z",
  "url": "https://research.draconitic.com/paper/841m8gs3hytt4",
  "venue": "The European Physical Journal C",
  "versions": []
}