{
  "abstract": "The binary black hole merger GW250114, the loudest gravitational-wave signal detected to date, offers an opportunity to perform a precise test of Einstein's general relativity (GR). Its exceptionally high signal-to-noise ratio enables accurate measurements of the quasi-normal modes (QNMs) and properties of the remnant black hole. In this work, we present a ringdown analysis of GW250114 using the RingCWB algorithm. We measure the dominant $(2,2,0)$ QNM along with its first overtone and constrain the fractional deviations in frequency and damping time from their GR-predicted values, finding $δf_{220} = 0.004_{-0.023}^{+0.022}$ and $δτ_{220} = 0.010_{-0.087}^{+0.096}$ , both consistent with zero within the quoted uncertainties. These results represent stringent constraints on deviations from GR. The analysis also places tight constraints on the remnant spin, consistent with a binary black hole formed through stellar evolution.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.09503",
  "author_total": 3,
  "authors": [
    {
      "name": "Achal Kumar"
    },
    {
      "name": "Poulami Dutta Roy"
    },
    {
      "name": "Sergey Klimenko"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/85mt7cp1raskg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.09503",
  "fulltext_url": null,
  "id": "85mt7cp1raskg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.09503",
  "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": "W7221062153",
  "pdf_url": "https://arxiv.org/pdf/2610.09503",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/85mt7cp1raskg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:37Z",
      "native_id": "2610.09503",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.09503"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Ringdown analysis of GW250114 with RingCWB",
  "title_text": "Ringdown analysis of GW250114 with RingCWB",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:37Z",
  "url": "https://research.draconitic.com/paper/85mt7cp1raskg",
  "venue": "arXiv",
  "versions": []
}