{
  "abstract": "Hard X-ray emission from Cas A has been attributed to jitter radiation, implying magnetic turbulence on scales near or below the ion Larmor radius. We propose these fields arise from ion-scale micro-instabilities (e.g., mirror and firehose) in the shock downstream, and use high-resolution hybrid simulations to demonstrate the generation of such small-scale turbulence. Its spectral index, once numerical dissipation is accounted for, is consistent with that inferred for Cas A, suggesting that jitter radiation is a direct probe of ion-scale turbulence in supernova remnants.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.01715",
  "author_total": 5,
  "authors": [
    {
      "name": "Emily Simon"
    },
    {
      "name": "Damiano Caprioli"
    },
    {
      "name": "Niccolò Bucciantini"
    },
    {
      "name": "Emanuele Greco"
    },
    {
      "name": "Marco Miceli"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/41bvc1epqyk38.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.01715",
  "fulltext_url": null,
  "id": "41bvc1epqyk38",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.01715",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "openalex",
      "3106|Astrophysics and Cosmic Phenomena"
    ]
  ],
  "openalex": "W7207680718",
  "pdf_url": "https://arxiv.org/pdf/2609.01715",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/41bvc1epqyk38.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2609.01715",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.01715"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "Measuring Small-scale Turbulence in Supernova Remnants with Jitter Radiation",
  "title_text": "Measuring Small-scale Turbulence in Supernova Remnants with Jitter Radiation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/41bvc1epqyk38",
  "venue": "arXiv",
  "versions": []
}