{
  "abstract": "We compare the integrated kinematic properties of the narrow-line region (NLR) of $\\sim$1500 type 1 and $\\sim$700 type 2 quasi-stellar objects (QSOs) at $0.4 \\le z \\le 0.5$ using emission-line profiles from Sloan Digital Sky Survey-IV spectra. The NLR [O iii]$\\lambda$5007 and H $\\beta$ emission lines are fitted using a two-component model comprising a narrow (v$_\\mathrm{n}$, $\\sigma _\\mathrm{n}$) and a broad component (v$_\\mathrm{b}$, $\\sigma _\\mathrm{b}$), while fainter lines are fitted with a single Gaussian component. Both QSO types exhibit similar median narrow-component velocities (v$_\\mathrm{n}\\approx$ 0) and velocity dispersions ($\\sigma _\\mathrm{ n} \\lt 200$ km s$^{-1}$), consistent with motion driven by the host galaxy’s gravitational potential. However, parameters associated with the broad, high-velocity gas component (v$_\\mathrm{b}$, v$_{05}$, v$_{10}$, v$_{[\\mathrm{ Ne}\\, {\\small \\mathrm{ V}}]}$, $\\sigma _\\mathrm{ b}$, $W80$, and $W90$) differ: QSOs 1 display larger blueshifts and broader emission lines than QSOs 2. This suggests that these components trace active galactic nuclei (AGNs) outflows, that appear stronger in QSOs 1, leading to higher estimated mass-outflow rates ($\\dot{M}_\\mathrm{out}$) and kinetic powers ($\\dot{E}_\\mathrm{out}$). Rather than offering absolute determinations of $\\dot{M}_\\mathrm{out}$ and $\\dot{E}_\\mathrm{out}$ – which remain subject to physical uncertainties – this statistical study supports the higher NLR excitation found for QSOs 1 in Paper I, as an orientation effect: In QSOs 1, we observe gas closer to the AGN core, where velocities and velocity dispersions are intrinsically higher. Nevertheless, the trend of QSOs 2 exhibiting higher average [O iii] luminosities than QSOs 1 suggests an evolutionary contribution, where QSOs 2 represent an early obscured AGN phase followed by a blowout phase that reveals the central core as a QSO 1.",
  "abstract_shown": true,
  "affiliations": [
    "Departamento de Astronomia, Universidade Federal do Rio Grande do Sul , Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS ,",
    "European Southern Observatory , Karl-Schwarzschild-Straße 2, D-85748 Garching bei Munchen ,",
    "Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg , Mönchhofstr 12-14, D-69120 Heidelberg ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Gabriel R Hauschild-Roier",
      "orcid": "0000-0002-2272-366X"
    },
    {
      "affs": [
        0
      ],
      "name": "Thaisa Storchi-Bergmann"
    },
    {
      "affs": [
        0
      ],
      "name": "Rogério Riffel",
      "orcid": "0000-0002-1321-1320"
    },
    {
      "affs": [
        1
      ],
      "name": "Vincenzo Mainieri"
    },
    {
      "affs": [
        2
      ],
      "name": "Lara Gatto",
      "orcid": "0000-0002-8589-8264"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e74sy9e2xg6mt.bib",
  "cited_by": 0,
  "doi": "10.1093/mnras/stag1898",
  "fulltext_url": null,
  "id": "e74sy9e2xg6mt",
  "issns": [
    "0035-8711",
    "1365-2966"
  ],
  "landing_url": "https://academic.oup.com/mnras/article/doi/10.1093/mnras/stag1898/8898886",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7220698037",
  "pdf_url": "https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stag1898/71790380/stag1898.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": "Oxford University Press (OUP)",
  "ris": "https://research.draconitic.com/paper/e74sy9e2xg6mt.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:17Z",
      "native_id": "10.1093/mnras/stag1898",
      "source": "crossref",
      "url": "https://academic.oup.com/mnras/article/doi/10.1093/mnras/stag1898/8898886"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Galaxies: Formation, Evolution, Phenomena",
      "subfield": "galaxies"
    }
  ],
  "title": "The differences in the narrow-line region of nearby QSOs 1 and QSOs 2 – II. Signatures of kinetic feedback",
  "title_text": "The differences in the narrow-line region of nearby QSOs 1 and QSOs 2 – II. Signatures of kinetic feedback",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:17Z",
  "url": "https://research.draconitic.com/paper/e74sy9e2xg6mt",
  "venue": "Monthly Notices of the Royal Astronomical Society",
  "versions": []
}