{
  "abstract": "Magnetic-field studies of star-forming regions are complicated by overlapping structures along the line of sight. We investigate the large-scale magnetic field toward NGC~1333 in Perseus, accounting for foreground polarization through stellar distances and optical polarimetry. Our wide-field $R$-band survey covers nearly one square degree and provides polarization measurements for approximately 840 stars, with distances from Gaia DR3 and StarHorse. We used polarization-distance trends and Stokes parameters to identify line-of-sight components and estimate foreground polarization. After subtracting it in Stokes space, we characterized the field using circular statistics and the angular dispersion function (ADF), comparing it with molecular-line and complementary polarimetric observations. The data reveal a polarized foreground at 160-300 pc and a cloud component beyond 300 pc. After correction, the plane-of-sky field rotates smoothly from $126.3°\\pm0.8°$ in the northwest to $162.2°\\pm0.6°$ in the southeast, remaining well ordered in both regions. The ADF gives turbulent-to-ordered field ratios of $0.054^{+0.025}_{-0.022}$ and $0.095^{+0.021}_{-0.047}$, corresponding to plane-of-sky strengths of $59^{+44}_{-23}$ and $46^{+50}_{-13}~μ\\mathrm{G}$. Residual foreground fluctuations may affect these estimates. CO data show multiple velocity components with spatially varying contributions. Corrected optical polarization agrees with the large-scale orientation traced by Planck, while near-infrared and JCMT/POL-2 data reveal localized deviations in denser structures. Our results indicate a coherent cloud-scale magnetic field with a smoothly changing orientation, alongside localized variations in dense structures. They demonstrate the value of combining stellar distances and wide-field optical polarimetry to disentangle foreground contributions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.07839",
  "author_total": 3,
  "authors": [
    {
      "name": "G. A. P. Franco"
    },
    {
      "name": "J. M. Girart"
    },
    {
      "name": "F. O. Alves"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3rqch3af57xex.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.07839",
  "fulltext_url": null,
  "id": "3rqch3af57xex",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.07839",
  "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/2611.07839",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3rqch3af57xex.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.07839",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.07839"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Multi-layer magnetic structure toward NGC 1333 revealed by a square-degree optical polarimetric survey",
  "title_text": "Multi-layer magnetic structure toward NGC 1333 revealed by a square-degree optical polarimetric survey",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:41Z",
  "url": "https://research.draconitic.com/paper/3rqch3af57xex",
  "venue": "arXiv",
  "versions": []
}