{
  "abstract": "The growth of galaxies and their central supermassive black holes is closely connected, yet the net effect of active galactic nuclei (AGN) feedback on host-galaxy star formation remains uncertain. AGN may enhance, suppress, or have little measurable impact on star formation, but distinguishing among these outcomes requires separating star-formation and AGN photoionization from shock excitation, which is expected in AGN-driven outflows but has been difficult to isolate. Here we apply a recently developed theoretical three-dimensional diagnostic diagram, designed to separate star formation, AGN, and shock excitation, to VLT/MUSE IFU observations of nine nearby (z < 0.026) Type 2 Seyfert galaxies. We find a common excitation pattern across the sample: star-forming rings or arcs at projected radii of r~0.8-6 kpc, AGN-photoionized bicones extending to kpc scales, central fast-shock-dominated regions that often extend perpendicular to the AGN bicone, and pure-shock- dominated regions surrounding the central fast shocks and appearing locally within the star-forming rings. Deep Chandra X-ray morphology independently supports this decomposition. The circumnuclear star-forming rings are consistent with bar-driven resonances, although positive AGN feedback may also contribute. The central fast shocks are broadly consistent with AGN jet-ISM interactions, while AGN wind-ISM interactions may also play an important role in galaxies with low-power jets. These results establish central shocks as a common feature of Seyfert galaxies and demonstrate the importance of accounting for shock excitation in AGN feedback studies.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.15913",
  "author_total": 9,
  "authors": [
    {
      "name": "Peixin Zhu"
    },
    {
      "name": "Lisa J. Kewley"
    },
    {
      "name": "Dominika Ł. Król"
    },
    {
      "name": "Giuseppina Fabbiano"
    },
    {
      "name": "Lars Hernquist"
    },
    {
      "name": "Ralph S. Sutherland"
    },
    {
      "name": "Anna Trindade Falcão"
    },
    {
      "name": "Martin Elvis"
    },
    {
      "name": "Riccardo Middei"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bm9f91ne3rx2e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.15913",
  "fulltext_url": null,
  "id": "bm9f91ne3rx2e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.15913",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.15913",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bm9f91ne3rx2e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.15913",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.15913"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Common Excitation Patterns of Star Formation, Active Galactic Nuclei, and Shocks in Seyfert Galaxies",
  "title_text": "Common Excitation Patterns of Star Formation, Active Galactic Nuclei, and Shocks in Seyfert Galaxies",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/bm9f91ne3rx2e",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.3847/1538-4357/ae9956",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}