{
  "abstract": "YZ Cancri is an SU UMa-type dwarf nova with sparse and heterogeneous optical spectroscopy. We present a homogeneous analysis of archival outburst-related spectra and seven new low-resolution quiescent spectra. We consistently characterize the Balmer, He I, Fe II, O I, and occasional He II and Bowen features, and assess which state-dependent differences are robustly supported. We applied a common continuum-normalization and line-measurement procedure, measuring equivalent widths, integrated line intensities, and selected profile parameters, and comparing line morphologies and intensity ratios between quiescent and outburst-related states. Because the spectra have modest and nonuniform resolving power and are not orbital-phase resolved, profile widths and centroid shifts are used only as relative diagnostics. Outburst-related spectra are dominated by broad Balmer absorption or composite profiles, whereas quiescent spectra show strong single-peaked Balmer and He I emission, recurrent Fe II λ5169, and weak O I λ7772 emission. He II λ4686 is detected in only two quiescent exposures, and the Bowen blend in one. The quiescent Balmer decrement is relatively flat, while the He I ratios show substantial exposure-to-exposure scatter. The measured Fe II ratios show no clear systematic departure from optically thin reference values, although blending limits their interpretation. These spectra establish an empirical state-dependent description of YZ Cnc and provide a reference dataset for future phase-resolved, higher-resolution spectroscopy.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18646",
  "author_total": 5,
  "authors": [
    {
      "name": "Zhibin Dai"
    },
    {
      "name": "Lihuan Yu"
    },
    {
      "name": "Jiao Li"
    },
    {
      "name": "Xuefei Chen"
    },
    {
      "name": "Zhanwen Han"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fr3bav5xk43qn.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18646",
  "fulltext_url": null,
  "id": "fr3bav5xk43qn",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.18646",
  "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.SR"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.18646",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fr3bav5xk43qn.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.18646",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18646"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "A homogeneous analysis of archival and new low-resolution spectra of YZ Cancri",
  "title_text": "A homogeneous analysis of archival and new low-resolution spectra of YZ Cancri",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/fr3bav5xk43qn",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1051/0004-6361/202661949",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}