{
  "access": "open",
  "card": {
    "dphep_level": 1,
    "known_limitations": "Frozen since 2005; nuclear inputs superseded by SF-III / B23; site returns 403 to some clients (2026-10-23) — archive copies needed.",
    "maintenance": "Unmaintained (author deceased 2005); hosted by IAS.",
    "summary": "Historic but still-used solar neutrino reference tables."
  },
  "creators": [
    {
      "name": "John N. Bahcall"
    }
  ],
  "curation": {
    "added": "2026-10-23",
    "source": "manual",
    "status": "curated"
  },
  "description": "The classic collection of solar-neutrino inputs maintained by John Bahcall at the Institute for Advanced Study:\nenergy spectra of all solar neutrino sources, Cl and Ga absorption cross sections, the BP2000/BP04/BS05 solar\nmodels (with electron-density tables), survival probabilities and zenith-angle exposure functions. Still the\nreference source for many tables, but frozen since 2005 and on an at-risk personal web space.",
  "distributions": [
    {
      "formats": ["txt", "html"],
      "host": "personal",
      "role": "primary",
      "url": "https://www.sns.ias.edu/~jnb/SNdata/"
    }
  ],
  "id": "bahcall-sndata",
  "license": "none-stated",
  "newtrinos": {
    "modules": ["solar_flux", "solar_xsec"],
    "verifications": ["10.1103_PhysRevLett.92.121301", "10.1103_PhysRevC.56.2839", "10.1103_PhysRevD.62.093004"]
  },
  "references": [
    {
      "citation": "Bahcall, PRC 56, 2839 (1997) — exposure functions",
      "doi": "10.1103/PhysRevC.56.2839",
      "relation": "describes"
    },
    {
      "citation": "Bahcall & Pinsonneault, PRL 92, 121301 (2004) — BP04",
      "doi": "10.1103/PhysRevLett.92.121301",
      "relation": "describes"
    }
  ],
  "short": "Bahcall's IAS pages: solar ν spectra (pp, hep, ⁸B, CNO), absorption cross sections, solar models, exposure functions",
  "sources": ["solar"],
  "title": "John Bahcall's solar neutrino data and software pages (SNdata)",
  "topics": ["solar-model", "flux", "cross-section"],
  "type": "collection",
  "url_landing": "https://www.sns.ias.edu/~jnb/"
}