{
  "abstract": "We present a comprehensive study of V1374 Tau, including starspot activity, a superflare, and the light-time effect. We acquired new ground-based photometry, LAMOST low-resolution spectra, and TESS time-series data. From the TESS data in Sectors 71 and 72, the differences between the two light maxima for each cycle are averaged to be Δ m max = −0.046 ± 0.005 mag during the 50 day interval. Using the Wilson–Devinney program, we derived two photometric solutions from LC HJD2461035 and LC BJD2460277 , in which spots migrate and evolve on the surfaces of two components. A superflare was found in TESS data (Sector 72), which was modelled by least-squares fitting and Markov Chain Monte Carlo (MCMC) methods. The flare energy emitted from the M dwarf secondary is estimated to be E flare = 3.2 5 − 0.35 + 0.36 × 1 0 36 erg . From the ( O − C ) analysis, the orbital period may be undergoing a secular decrease with a 5.28 yr cyclic variation. The former may result from mass transfer from the more massive component to the less one, while the latter may be attributed to the light-time effect via the presence of the third body. Mass transfer, tertiary angular momentum extraction, and flare mass loss jointly shrink the orbit, driving the system toward a contact configuration as predicted by the thermal relaxation oscillation theory.",
  "abstract_shown": true,
  "affiliations": [
    "Huaibei Normal University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yuangui Yang",
      "orcid": "0000-0002-0151-6557"
    },
    {
      "affs": [
        0
      ],
      "name": "Shuang Wang"
    },
    {
      "affs": [
        0
      ],
      "name": "Huiyu Yuan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fjfec645hryq5.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/aea98d",
  "fulltext_url": null,
  "id": "fjfec645hryq5",
  "issns": [
    "1538-4357",
    "0004-637X"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea98d",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "feed-journal",
      "astronomy/general"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea98d/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/fjfec645hryq5.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T00:20:51Z",
      "native_id": "10.3847/1538-4357/aea98d",
      "source": "feed-iop",
      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea98d"
    },
    {
      "first_seen": "2026-11-06T00:21:00Z",
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      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea98d"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "journal-openalex:3103|Stellar, planetary, and galactic studies",
      "subfield": "stellar"
    }
  ],
  "title": "V1374 Tau: A Dwarf Eclipsing Binary with Starspots, a Superflare, and a Tertiary Companion",
  "title_text": "V1374 Tau: A Dwarf Eclipsing Binary with Starspots, a Superflare, and a Tertiary Companion",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T00:20:58Z",
  "url": "https://research.draconitic.com/paper/fjfec645hryq5",
  "venue": "The Astrophysical Journal",
  "versions": []
}