{
  "abstract": "The exceptionally large angular diameter and intrinsic optical faintness of the Galactic supernova remnant (SNR) G180.0-01.7 (S147) have historically hindered a comprehensive spectroscopic census of its filamentary structure. We present the first dedicated medium-resolution (R ~ 7500) spectroscopic study of S147 using the LAMOST Medium-Resolution Spectroscopic survey of Galactic Nebulae (MRS-N). By implementing multi-Gaussian decomposition on the H$α$, [NII], and [SII] emission complexes and applying combined spectroscopic and spatial criteria, we disentangle the shock-ionized filaments of the SNR from the pervasive foreground and background Diffuse Ionized Gas (DIG). Our analysis reveals a distinct bimodal radial velocity distribution for the SNR: a low-velocity population tracing the decelerated forward shock at a dense cavity wall, and a high-velocity population (with absolute radial velocities of ~ 70 $\\pm$ 30 km/s) corresponding to ejecta within a low-density cavity. The co-existence of these populations provides kinematic evidence for the \"supernova-in-a-cavity\" scenario. Furthermore, we detect enhanced [SII]/H$α$ ratios in the DIG along the eastern and northern boundaries of the remnant, signaling shock compression of the ambient interstellar medium and highlighting remnant's multifaceted feedback.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.12880",
  "author_total": 6,
  "authors": [
    {
      "name": "Juan-Juan Ren"
    },
    {
      "name": "Wei Zhang"
    },
    {
      "name": "Chao-Jian Wu"
    },
    {
      "name": "Chao Liu"
    },
    {
      "name": "Jian-Jun Chen"
    },
    {
      "name": "Hong Wu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/08hmp8tm84kmw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.12880",
  "fulltext_url": null,
  "id": "08hmp8tm84kmw",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.12880",
  "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.GA"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.12880",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/08hmp8tm84kmw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2610.12880",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.12880"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Decomposing the Kinematics of SNR G180.0-01.7 with Medium-Resolution Spectra",
  "title_text": "Decomposing the Kinematics of SNR G180.0-01.7 with Medium-Resolution Spectra",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:36Z",
  "url": "https://research.draconitic.com/paper/08hmp8tm84kmw",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1813",
      "pid": "ewq01t2pdk5vv",
      "relation": "published-as",
      "title": "Decomposing the kinematics of SNR G180.0-01.7 with medium-resolution spectra",
      "venue": "Monthly Notices of the Royal Astronomical Society"
    }
  ]
}