{
  "abstract": "We develop a Plebański--Demiański-adapted parametrization of the general Ovcharenko--Podolský solution and construct new families of generalized black holes in four-dimensional Einstein--Maxwell theory. These Petrov type~D spacetimes possess non-null, fully non-aligned electromagnetic fields. A restriction imposed in the previous parametrization is not required by the field equations in shifted coordinates. Removing it retains an independent charge parameter $q$, which may be real or purely imaginary. For $q^2\\geq0$, both the metric and electromagnetic field admit a smooth aligned limit to the charged Plebański--Demiański solution with $Λ=0$ and $e^2+g^2=q^2$. We impose angular conditions in the Griffiths--Podolský form allowing Killing horizon cross sections with spherical topology. The resulting eight-parameter class extends the seven-parameter class of Ovcharenko and Podolský [arXiv:2508.04850]. The remaining normalization condition is generically quartic, defining four algebraic branches. We give explicit metrics and electromagnetic fields for the non-twisting and $l=0$ twisting families and analyze their black hole and acceleration horizons, extremality, conicity, and further limits. We determine the effective-NUT-free branches of the latter family and their degenerate cases. Using the genuine Griffiths--Podolský form, we establish an explicit correspondence between the non-accelerating effective-NUT-free subclass and the Kerr--Newman--Bertotti--Robinson family and express its electromagnetic flux charges in our parameters. The $q^2<0$ sector includes the genuine uncharged Kerr--Bertotti--Robinson solution recently identified by Ovcharenko and Podolský [arXiv:2608.21672].",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.10332",
  "author_total": 2,
  "authors": [
    {
      "name": "Hideo Furugori"
    },
    {
      "name": "Shinya Tomizawa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8rd37pxpsg4bv.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.10332",
  "fulltext_url": null,
  "id": "8rd37pxpsg4bv",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.10332",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7212145743",
  "pdf_url": "https://arxiv.org/pdf/2609.10332",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8rd37pxpsg4bv.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2609.10332",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.10332"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Generalized Black Holes with Fully Non-aligned Electromagnetic Fields",
  "title_text": "Generalized Black Holes with Fully Non-aligned Electromagnetic Fields",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/8rd37pxpsg4bv",
  "venue": "arXiv",
  "versions": []
}