{
  "abstract": "The physical trigger of core-collapse supernova (CC-SNe) is a central theme in modern surveys of the transient Universe. A multi-messenger approach may provide a unique window to CC-SNe produced by a newly born neutron star (NS) or black hole (BH). Here we apply joint electromagnetic-gravitational wave (EM-GW) analysis to the nearby event SN 2023ixf using a model-independent broadband search with a GW-energy detection threshold of a few times $10^{-5} M_\\odot c^2$ for chirps and $10^{-2}$ $M_\\odot c^2$ for noise-like emission below 1\\,kHz. No joint LIGO Hanford-Livingston (H1-L1) signal associated with SN 2023ixf is observed over a 2.5 day window proceeding the first discovery. Together with EM photometric-spectroscopic data, we interpret this null result to indicate the absence of BH formation, in part by mass-scaling of the BH powering GW170817B following GW170817. This multi-messenger outcome supports, hereby, scenarios consistent with NS formation, consistent with a progenitor mass likely below $\\sim 20 M_\\odot$ estimated by EM interpretations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: ApJ 1006 212 (2026)",
  "arxiv": "2608.27468",
  "author_total": 3,
  "authors": [
    {
      "name": "Maryam Aghaei Abchouyeh"
    },
    {
      "name": "Maurice H. P. M. van Putten"
    },
    {
      "name": "Massimo Della Valle"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c62az1tsf8b5f.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.27468",
  "fulltext_url": null,
  "id": "c62az1tsf8b5f",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.27468",
  "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.HE"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.27468",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c62az1tsf8b5f.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "2608.27468",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.27468"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "Multimessenger Constraints on the Central Engine in SN 2023ixf: Neutron Star or Black Hole?",
  "title_text": "Multimessenger Constraints on the Central Engine in SN 2023ixf: Neutron Star or Black Hole?",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/c62az1tsf8b5f",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.3847/1538-4357/ae81a3",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}