{
  "abstract": "Element abundances in nearby galaxies provide insights into their chemical enrichment histories and place the Milky Way and its neighbours in a broader cosmological context. These systems can be studied through individual stars, whose resolved spectra enable the construction of a chemical abundance census of the Local Group. We present the second stage of the ACACIAS (extra-galactic ArChAeology with Cannon Inferred Abundances from resolved integral field unit Spectra) program, which aims to build the first homogeneous data set of stellar abundances across dwarf galaxies spanning a range of masses for comparison with Milky Way properties. We analyse low-resolution (R=1800), low-SNR (signal-to-noise ratio, ~ 25) MUSE spectra for 39 stars in the Sculptor dwarf spheroidal galaxy. Using the data-driven method The Cannon, we combine high-fidelity labels from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey with MUSE-like Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectra to analyse the MUSE data. This enables the determination of [Mg/Fe], [Mn/Fe], [C/Fe], [N/Fe], and [Al/Fe] on the APOGEE abundance scale, with precisions of σ = 0.09-0.37 dex. Comparing model configurations, we show that [Mg/Fe], [Mn/Fe], and [C/Fe] are best recovered from targeted spectral windows, whereas stellar parameters and [Al/Fe] benefit from full-spectrum information with telluric masking. This reflects the complementary strengths of restricted-window models, which recover abundances from direct spectral features, and full-spectrum models, which exploit correlations with other labels when diagnostic features are weak or absent. Our approach demonstrates the potential of low-resolution, low-SNR stellar spectra to build homogeneous datasets for extragalactic archaeology to better understand the chemical enrichment diversity of the Local Group.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.21028",
  "author_total": 4,
  "authors": [
    {
      "name": "Anell Cornejo-Cárdenas"
    },
    {
      "name": "Sven Buder"
    },
    {
      "name": "Melissa K. Ness"
    },
    {
      "name": "J. Trevor Mendel"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1npvxw5hvvszf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.21028",
  "fulltext_url": null,
  "id": "1npvxw5hvvszf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.21028",
  "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/2610.21028",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1npvxw5hvvszf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:50Z",
      "native_id": "2610.21028",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.21028"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "ACACIAS II: element abundances for 39 stars in the dwarf galaxy Sculptor",
  "title_text": "ACACIAS II: element abundances for 39 stars in the dwarf galaxy Sculptor",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:50Z",
  "url": "https://research.draconitic.com/paper/1npvxw5hvvszf",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1753",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}