{
  "abstract": "Binary black holes (BBHs) formed in dense stellar environments or in hierarchical triples can coalesce on eccentric orbits and carry spins of arbitrary orientation, leaving distinctive imprints on their gravitational-wave (GW) emission. We present SEOBNRv6EPHM: the first generic-orbit, spin-precessing model in the effective-one-body SEOBNR family, whose waveforms have underpinned LIGO-Virgo GW analyses since 2011. The model describes the dynamics and multipolar GW signal of generic BBHs, covering the inspiral-merger-ringdown of coalescing binaries and extending to dynamical captures and scattering encounters. We perform the first systematic accuracy assessment of a generic-orbit model against numerical relativity (NR) waveforms of spin-precessing BBHs, using 1437 quasi-circular (QC) and 87 eccentric simulations: median waveform mismatches remain below $1 \\%$, matching the accuracy of the QC model SEOBNRv5PHM, and improving on the state-of-the-art generic-orbit model TEOBResumS-Dalí by a median factor of $ 4 $. The model also reproduces the non-perturbative phenomenology observed in NR simulations of generic-spin BBH scattering. It is $\\sim 2 - 3$ times faster than SEOBNRv5PHM in the QC limit, and up to an order of magnitude faster than TEOBResumS-Dalí, bringing eccentric inference to the cost of current QC analyses. As a proof of principle, we analyze eleven GW events and focus on GW200129, strengthening its evidence for eccentricity $-$ a result supported by injection-recovery studies with synthetic NR signals of eccentric, spin-precessing BBHs. SEOBNRv6EPHM thus enables, for the first time, accurate and efficient GW analyses that jointly account for eccentricity and spin precession.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.01568",
  "author_total": 10,
  "authors": [
    {
      "name": "Aldo Gamboa"
    },
    {
      "name": "Lorenzo Pompili"
    },
    {
      "name": "Alessandra Buonanno"
    },
    {
      "name": "Luca Sebastiani"
    },
    {
      "name": "Raffi Enficiaud"
    },
    {
      "name": "Michael Boyle"
    },
    {
      "name": "Lawrence E. Kidder"
    },
    {
      "name": "Harald P. Pfeiffer"
    },
    {
      "name": "Antoni Ramos-Buades"
    },
    {
      "name": "Mark A. Scheel"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8nmjmnqtgvc8h.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.01568",
  "fulltext_url": null,
  "id": "8nmjmnqtgvc8h",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.01568",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7206218018",
  "pdf_url": "https://arxiv.org/pdf/2609.01568",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8nmjmnqtgvc8h.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.01568",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.01568"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Enabling gravitational-wave astronomy with spin-precessing black holes on generic orbits",
  "title_text": "Enabling gravitational-wave astronomy with spin-precessing black holes on generic orbits",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/8nmjmnqtgvc8h",
  "venue": "arXiv",
  "versions": []
}