{
  "abstract": "Binary neutron star (BNS) mergers excite a Kelvin--Helmholtz instability (KHI) in the shear layer between them. It is parasitized upon by the magnetic field to form a powerful magnetic dynamo. Using a large ensemble of high-resolution visco-resistive KHI-driven dynamo simulations we construct analytical, asymptotic in Reynolds number ($\\rm{Re}$) models for the magnetic field growth rates and mean vertical field dynamo onset times. Our models suggest that in the $\\rm{Re} \\gg 1$ limit, the mean vertical field is seeded immediately, kinematic growth rates become asymptotic in $\\rm{Re}$, and the dynamo moves out of the kinematic stage on $\\mathcal{O}(0.1\\,\\rm{ms})$ timescales, readily attaining magnetar-strength fields during this transition. This suggests that most global BNS merger simulations are not time-resolving the correct KHI-driven dynamo regime.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.05880",
  "author_total": 7,
  "authors": [
    {
      "name": "James R. Beattie"
    },
    {
      "name": "Amitava Bhattacharjee"
    },
    {
      "name": "Elias R. Most"
    },
    {
      "name": "Bart Ripperda"
    },
    {
      "name": "Alexander Philippov"
    },
    {
      "name": "Ralf S. Klessen"
    },
    {
      "name": "Salvatore Cielo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3y81jz9r1zy1z.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.05880",
  "fulltext_url": null,
  "id": "3y81jz9r1zy1z",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.05880",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.GA"
    ],
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "astro-ph.SR"
    ],
    [
      "arxiv",
      "physics.flu-dyn"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.05880",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3y81jz9r1zy1z.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T15:20:56Z",
      "native_id": "2611.05880",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.05880"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.flu-dyn",
      "subfield": "fluid-dynamics"
    }
  ],
  "title": "The kinematic Kelvin-Helmholtz instability-driven dynamo: implications for merging compact objects",
  "title_text": "The kinematic Kelvin-Helmholtz instability-driven dynamo: implications for merging compact objects",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:19Z",
  "url": "https://research.draconitic.com/paper/3y81jz9r1zy1z",
  "venue": "arXiv",
  "versions": []
}