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  "story": {
    "story_id": "mp-2026-08-09-002",
    "source_story_id": "tmp-feature-stripped-star-wind",
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    "headline": "The Missing Star Was Wearing Another Star's Wind",
    "slug": "the-missing-star-was-wearing-another-star-s-wind",
    "dek": "A 5.94-day binary exposes an intermediate-mass helium core with emission and mass loss more typical of a classical Wolf-Rayet star.",
    "summary": "A 5.94-day binary exposes an intermediate-mass helium core with emission and mass loss more typical of a classical Wolf-Rayet star.",
    "body_text": "Using the SDSS-V Milky Way Mapper and follow-up modeling, astronomers identify a hot, helium-rich stripped companion with an inferred mass of 3.2 to 5.8 solar masses orbiting a rapidly rotating O-type star every 5.94 days. The short, nearly circular orbit and spun-up companion point to earlier mass transfer; the authors argue the stripped star is caught in a brief inflated phase that makes it easier to see. Its inferred wind resembles those of more massive classical Wolf-Rayet stars, though the team cautions that selecting strong emission systems biases the sample.",
    "why_it_matters": "A 5.94-day binary exposes an intermediate-mass helium core with emission and mass loss more typical of a classical Wolf-Rayet star.",
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    "importance": 9,
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-09-002/the-missing-star-was-wearing-another-star-s-wind",
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    "first_published_at": "2026-08-09T09:00:00.000-04:00",
    "modified_at": "2026-08-09T09:00:00.000-04:00",
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        "text": "A 5.94-day binary exposes an intermediate-mass helium core with emission and mass loss more typical of a classical Wolf-Rayet star.",
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    "source_ids": [
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    "tags": [
      "binary stars",
      "stellar evolution",
      "Wolf-Rayet winds",
      "SDSS-V"
    ],
    "image_url": "https://themachinepress.com/issues/2026-08-09/feature-stripped-star-wind.png",
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  "sources": [
    {
      "source_id": "source-2026-08-09-002",
      "title": "arXiv preprint 2608.05276",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.05276",
      "canonical_url": "https://arxiv.org/abs/2608.05276",
      "source_type": "primary_research",
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      "published_at": null,
      "accessed_at": "2026-08-09T08:17:45.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Missing Star Was Wearing Another Star's Wind",
    "publisher": "The Machine Press",
    "published_at": "2026-08-09T09:00:00.000-04:00",
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