{
  "abstract": "Hyperactive repeaters provide a unique window into the evolving environments and energy budgets of fast radio burst (FRB) sources, though they may not be representative of the FRB population in general. High-cadence observations are key to capturing the rarest and most energetic bursts, which occur only once per hundreds to thousands of hours. Here we present an unprecedented $4{,}200$-hour observing campaign targeting FRB 20240114A as part of the HyperFlash and ÉCLAT FRB monitoring programs. Over $806$ days, we detected $178$ high-energy ($\\sim$$10^{40-42}$ erg) bursts with HyperFlash, which together amount to $4.4 \\times 10^{42}$ erg of released radio energy (assuming isotropic emission and 1-GHz emission bandwidth). The cumulative energy of the HyperFlash bursts is about twice that of $\\sim$$11{,}000$ lower-energy bursts detected with FAST, emphasising the significant role that the highest-energy bursts play in depleting the central engine's stored energy. In fact, the single most brilliant burst from our sample, which we term the STROOP, contributes roughly $1/3$ of all the energy we measure, and is at the maximum energy seen in studies of both repeating and apparently one-off FRBs alike. We also find a break in the burst energy distribution at $\\sim$$2\\times10^{40}$ erg and a linear dispersion measure (DM) increase of $+0.96 \\pm 0.06$ pc cm$^{-3}$ over a period of $318$ days. We discuss these findings in the context of a magnetar source model and highlight comparisons with the energetics of intermediate and giant X-ray/$γ$-ray flares from Galactic sources.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Mon Not R Astron Soc (2026)",
  "arxiv": "2605.18513",
  "author_total": 17,
  "authors": [
    {
      "name": "O. S. Ould-Boukattine"
    },
    {
      "name": "A. J. Cooper"
    },
    {
      "name": "A. M. Cook"
    },
    {
      "name": "J. W. T. Hessels"
    },
    {
      "name": "D. M. Hewitt"
    },
    {
      "name": "J. Huang"
    },
    {
      "name": "I. Cognard"
    },
    {
      "name": "T. J. Dijkema"
    },
    {
      "name": "M. P. Gawroński"
    },
    {
      "name": "W. Herrmann"
    },
    {
      "name": "F. Kirsten"
    },
    {
      "name": "A. Moroianu"
    },
    {
      "name": "Z. Pleunis"
    },
    {
      "name": "W. Puchalska"
    },
    {
      "name": "S. Ranguin"
    },
    {
      "name": "M. P. Snelders"
    },
    {
      "name": "T. Telkamp"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6bgkedksm99ee.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.18513",
  "fulltext_url": null,
  "id": "6bgkedksm99ee",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.18513",
  "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/2605.18513",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6bgkedksm99ee.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2605.18513",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.18513"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "A 4200-hour HyperFlash and ÉCLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts",
  "title_text": "A 4200-hour HyperFlash and ÉCLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/6bgkedksm99ee",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1957",
      "pid": "8r80g36zsqe5k",
      "relation": "published-as",
      "title": "A 4200-hour HyperFlash and ÉCLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts",
      "venue": "Monthly Notices of the Royal Astronomical Society"
    }
  ]
}