{
  "abstract": "We present analysis of an extended emission line region projected 3.77 kpc from the nucleus of the canonical changing-look AGN Mrk~1018, found in MUSE integral-field observations from the Close AGN Reference Survey. Emission-line ratios show that the region exhibits AGN ionisation but has a very low velocity dispersion, $77 \\pm 1$ kms$^{-1}$, ruling out an ionised outflow. The lower limit on the light travel time is $12{,}300 \\pm 2{,}300$ yr, implying that the nucleus has therefore been active for at least this long. This is much longer than the duration of either observed changing-look transition, which occurred over several years. This implies that Mrk 1018's multi-year variations are occurring within a longer term active phase.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.07533",
  "author_total": 3,
  "authors": [
    {
      "name": "Rebecca McElroy"
    },
    {
      "name": "Scott M. Croom"
    },
    {
      "name": "Thomas Dunn"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0erv0wzghypbd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.07533",
  "fulltext_url": null,
  "id": "0erv0wzghypbd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.07533",
  "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/2611.07533",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0erv0wzghypbd.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.07533",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.07533"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Constraining the timescale of activity in Mrk 1018",
  "title_text": "Constraining the timescale of activity in Mrk 1018",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:41Z",
  "url": "https://research.draconitic.com/paper/0erv0wzghypbd",
  "venue": "arXiv",
  "versions": []
}