{
  "abstract": "Motivated by the discovery of a meteor with velocity more than 300~km/s (Afanasiev et al. 2007) we study how dust grains formed in the supernova (SN) ejecta at its free-expansion phase can keep their high velocity obtained from the gas, where these grains were born. Using a one-dimensional spherically symmetric Lagrangian approach we follow the dynamics of grains during the interaction of a SN ejecta with the ambient interstellar gas. We found that grains larger $\\sim 0.3~μ$m can cross the SN forward shock front and reach the ambient interstellar medium. They are destroyed inefficiently, thus, their sizes remain close to the initial ones. In a diffuse interstellar gas of density $\\lesssim 1$ cm$^{-3}$ grains larger as $\\gtrsim 1~μ$m move with velocity around $1-2$ thousand km/s and spread over distances exceeding $\\sim 40-90$ pc from the SN origin within tens of kiloyears. In dense environment the propagation of grains is significantly suppressed: even large grains do not spread over distances greater than 50% of the current SN remnant size. Grains born close to the edge of the SN ejecta core in less-massive ejecta reach greater distances. Thus, high-velocity grains are expected to be formed in this part of the ejecta with mass lower than $\\sim 3~M_\\odot$ of the SN remnant evolving in a diffuse gas with density $\\lesssim 1$ cm$^{-3}$. We discuss possible consequences for dust transport out from galactic disks.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Astrophysical Bulletin, 2026, Vol. 81, pp. 424-439",
  "arxiv": "2609.39759",
  "author_total": 1,
  "authors": [
    {
      "name": "Evgenii O. Vasiliev"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fqy04yy98abtw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.39759",
  "fulltext_url": null,
  "id": "fqy04yy98abtw",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.39759",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.GA"
    ],
    [
      "openalex",
      "3103|Gamma-ray bursts and supernovae"
    ]
  ],
  "openalex": "W7215078236",
  "pdf_url": "https://arxiv.org/pdf/2609.39759",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fqy04yy98abtw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:49Z",
      "native_id": "2609.39759",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.39759"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "High velocity dust grains produced by a supernova explosion",
  "title_text": "High velocity dust grains produced by a supernova explosion",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:49Z",
  "url": "https://research.draconitic.com/paper/fqy04yy98abtw",
  "venue": "arXiv",
  "versions": []
}