{
  "abstract": "Superoutbursts and superhumps are characteristic signatures of SU UMa-type cataclysmic variables, yet the full diversity of superhump evolutionary behaviour remains poorly constrained owing to the limitations of ground-based photometric monitoring. Here we report a systematic analysis of 30 SU UMa-type dwarf novae observed with the Transiting Exoplanet Survey Satellite, covering 37 superoutburst events. We detect coherent superhump signals in 29 systems-including five first-time detections-and determine or refine orbital periods for 13 objects. The high-cadence light curves clearly resolve the canonical three-stage (A-B-C) superhump period evolution. Using Stage A periods, we derive dynamical mass ratios for 18 systems, consistent with established cataclysmic variable evolutionary tracks. The measured Stage B period derivatives match the range of values from ground-based campaigns, with prominent positive drifts concentrated in short-period, low-mass-ratio systems. Repeated superoutbursts yield consistent evolutionary patterns, demonstrating that superhump morphology is an intrinsic, repeatable property. Two systems break the standard template: RZ LMi shows an inverted stage sequence inconsistent with classical precession theory, while ASASSN-14kj exhibits no stage evolution but a coherent long-period modulation. Persistent superhumps during normal outbursts in three systems provide direct evidence that eccentric disk structures can survive beyond their parent superoutbursts, revealing a decoupling between thermal accretion and tidal eccentricity cycles. These results demonstrate the power of space-borne photometry for probing accretion disk dynamics and testing precession models across the cataclysmic variable parameter space.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12461",
  "author_total": 13,
  "authors": [
    {
      "name": "Qi-Bin Sun"
    },
    {
      "name": "Sheng-Bang Qian"
    },
    {
      "name": "Li-Ying Zhu"
    },
    {
      "name": "Qin-Mei Li"
    },
    {
      "name": "Wen-Ping Liao"
    },
    {
      "name": "Fu-Xing Li"
    },
    {
      "name": "Wen-Xu Lin"
    },
    {
      "name": "Min-Yu Li"
    },
    {
      "name": "Ping Li"
    },
    {
      "name": "Fang-Zhou Yan"
    },
    {
      "name": "Zi-Mo Li"
    },
    {
      "name": "Tao Wang"
    },
    {
      "name": "Mao-Han Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9xkf5qnqktrpx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12461",
  "fulltext_url": null,
  "id": "9xkf5qnqktrpx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12461",
  "language": null,
  "licence": "CC0-1.0",
  "licence_label": "CC0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/publicdomain/zero/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.SR"
    ],
    [
      "openalex",
      "3103|Astrophysical Phenomena and Observations"
    ]
  ],
  "openalex": "W7212938342",
  "pdf_url": "https://arxiv.org/pdf/2609.12461",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9xkf5qnqktrpx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12461",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12461"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "Superoutbursts and Superhumps of Cataclysmic Variables observed with TESS",
  "title_text": "Superoutbursts and Superhumps of Cataclysmic Variables observed with TESS",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/9xkf5qnqktrpx",
  "venue": "arXiv",
  "versions": []
}