{
  "abstract": "Very young pulsating stars, including pre-main sequence pulsators, provide a rare opportunity to probe stellar interiors and investigate rotation during the earliest phases of stellar evolution. However, they remain relatively unexplored, particularly in the intermediate-mass regime. We aim to identify and characterise young pulsating stars in the Perseus Molecular Cloud using photometric data from the Transiting Exoplanet Survey Satellite (TESS). We compiled Gaia-based membership catalogues for the Perseus Molecular Cloud, applied selection criteria to isolate young intermediate-mass stars, and extracted light curves from TESS full-frame images. Variability classification was performed using Lomb-Scargle periodograms and iterative pre-whitening. For confirmed pressure-mode pulsators, we estimated the frequency of maximum pulsation power, $ν_{\\mathrm{max}}$. For gravity-mode candidates, we searched for period-spacing patterns and fit them using the traditional approximation of rotation. From 148 membership-selected targets, we identified eight pressure-mode pulsators and two objects showing possible gravity-mode pulsations. We analysed the previously known $δ$ Sct star V705 Per, bringing the total sample to 149 targets. One of the gravity-mode pulsators, HD 281229, is the youngest star known to date with a detected and modelled period-spacing pattern. By simultaneously fitting the dipole and quadrupole period-spacing patterns, we estimate an asymptotic period spacing of $Π_0=4776\\pm400$ s and a near-core rotation frequency of $f_{\\mathrm{rot}}=1.317\\pm0.05$ $\\mathrm{d}^{-1}$. These results highlight the potential of asteroseismology to probe the internal structure and rotation of very young stars. The detected period-spacing pattern in HD 281229 shows that gravity-mode asteroseismology can provide meaningful constraints on the properties of stars at early evolutionary stages.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.38264",
  "author_total": 4,
  "authors": [
    {
      "name": "Saakshi Wadhwa"
    },
    {
      "name": "Dario J. Fritzewski"
    },
    {
      "name": "Gang Li"
    },
    {
      "name": "Simon J. Murphy"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/esj7qebpf07xy.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.38264",
  "fulltext_url": null,
  "id": "esj7qebpf07xy",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.38264",
  "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/2610.38264",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/esj7qebpf07xy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:23Z",
      "native_id": "2610.38264",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.38264"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "Asteroseismic properties of young pulsators in the Perseus Molecular Cloud. Discovery of period-spacing patterns in HD 281229",
  "title_text": "Asteroseismic properties of young pulsators in the Perseus Molecular Cloud. Discovery of period-spacing patterns in HD 281229",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/esj7qebpf07xy",
  "venue": "arXiv",
  "versions": []
}