{
  "abstract": "We present a class of regular axisymmetric black hole geometries fully characterized by the parameters $$\\{\\mathcal{M},a\\}$$ and possessing the Kerr event horizon. This family interpolates between regular spacetimes, configurations with integrable singularities, and the Kerr solution as a limiting case. Its main features are: (i) the existence of quasi-extremal configurations without requiring $$a \\approx \\mathcal{M}$$; and (ii) a possible framework toward an analytical description of Kerr black hole formation from an initially regular configuration.",
  "abstract_shown": true,
  "affiliations": [
    "Silesian University in Opava",
    "Universidad de Tarapacá"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "J. Ovalle",
      "orcid": "0000-0002-4988-7891"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0bdrtstk3kt28.bib",
  "cited_by": 0,
  "doi": "10.1140/epjc/s10052-026-16530-1",
  "fulltext_url": null,
  "id": "0bdrtstk3kt28",
  "issns": [
    "1434-6052"
  ],
  "landing_url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16530-1",
  "language": null,
  "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": [
    [
      "feed-journal",
      "physics/high-energy"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://link.springer.com/content/pdf/10.1140/epjc/s10052-026-16530-1.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/0bdrtstk3kt28.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T18:20:57Z",
      "native_id": "10.1140/epjc/s10052-026-16530-1",
      "source": "feed-springer",
      "url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16530-1"
    },
    {
      "first_seen": "2026-11-06T00:20:57Z",
      "native_id": "10.1140/epjc/s10052-026-16530-1",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16530-1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "feed-journal:physics/high-energy",
      "subfield": "high-energy"
    }
  ],
  "title": "Kerr black holes without primary hairs",
  "title_text": "Kerr black holes without primary hairs",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T00:20:56Z",
  "url": "https://research.draconitic.com/paper/0bdrtstk3kt28",
  "venue": "The European Physical Journal C",
  "versions": []
}