{
  "abstract": "For sixty years, the Sun served neutrino physics more than the reverse: its neutrinos established oscillations rather than probing the star itself. That is now changing. Reactor antineutrinos have pinned down the oscillation parameters governing solar-neutrino flavour conversion so precisely that the propagation-related uncertainty is becoming negligible -- closing the first of two abysses. Solar neutrinos can, at last, be turned on the Sun. Yet a second abyss remains: today's solar-neutrino detection falls an order of magnitude short of the precision the Standard Solar Model already predicts for the dominant pp flux ($>\\,$90$\\%$) -- a gap no reactor experiment can close. The intrinsic $^{14}\\mathrm{C}$ background walls off the pp region; only new detection techniques can breach it. Bridging this second abyss demands a revolution, not an increment. Combined with helioseismology's complementary reading of the Sun's mechanical structure, precision neutrino measurements of the nuclear source terms would enable a multi-messenger heliotomography of the solar interior -- reading our star from both sides at once. A new age of solar discoveries may follow, on one condition: that the field builds the instruments equal to the task.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18799",
  "author_total": 10,
  "authors": [
    {
      "name": "Anatael Cabrera"
    },
    {
      "name": "Mark Chen"
    },
    {
      "name": "Stefano Dusini"
    },
    {
      "name": "Jeff Hartnell"
    },
    {
      "name": "Jorge Martín Camalich"
    },
    {
      "name": "Diana Navas"
    },
    {
      "name": "Hiroshi Nunokawa"
    },
    {
      "name": "Aldo Serenelli"
    },
    {
      "name": "Javier Trujillo Bueno"
    },
    {
      "name": "Frédéric Yermia"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c7nzs5nc1pya3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18799",
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  "pdf_url": "https://arxiv.org/pdf/2609.18799",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c7nzs5nc1pya3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:40Z",
      "native_id": "hal-05763113",
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      "url": "https://hal.science/hal-05763113v1"
    },
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.18799",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18799"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "After 60 years, here comes the Sun",
  "title_text": "After 60 years, here comes the Sun",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/c7nzs5nc1pya3",
  "venue": "HAL",
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}