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    "headline": "Ten Thousand Fast Radio Bursts Could Map Cluster Magnetism",
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    "dek": "Current stacks set microgauss-scale upper limits; a future DSA sample could measure group fields to 3–13 percent precision.",
    "summary": "Current stacks set microgauss-scale upper limits; a future DSA sample could measure group fields to 3–13 percent precision.",
    "body_text": "The study combines Faraday rotation, fast-radio-burst dispersion, kinematic Sunyaev-Zel'dovich and thermal-pressure constraints. Present data yield upper limits, not detections. Forecasts indicate a denser Deep Synoptic Array rotation grid plus 10,000 bursts could make precision profiles possible.",
    "why_it_matters": "Current stacks set microgauss-scale upper limits; a future DSA sample could measure group fields to 3–13 percent precision.",
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      "Present data yield upper limits, not detections."
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    "tags": [
      "galaxy clusters",
      "magnetic fields",
      "fast radio bursts",
      "cosmology"
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      "title": "arXiv preprint 2610.37646, original v1",
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