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    "headline": "DESI Found 3,636 Sodium Absorbers",
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    "dek": "The first blind survey tracked dense neutral gas across 214,035 quasar sightlines.",
    "summary": "The first blind survey tracked dense neutral gas across 214,035 quasar sightlines.",
    "body_text": "A blind survey of DESI Data Release 1 identified 3,636 intervening sodium doublets along 214,035 quasar sightlines over the last roughly three billion years. Injection-and-recovery tests put 50% completeness near a 0.95-angstrom rest-equivalent width and catalog-weighted purity near 77%. In the fiducial sample, absorber incidence rose by about 3.4 times from redshift 0.25 to 0.03. The foreground-galaxy association remains preliminary and awaits dedicated surveys.",
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    "tags": [
      "DESI",
      "circumgalactic gas",
      "quasars"
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      "title": "arXiv preprint 2609.26794",
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