{
  "abstract": "We present multi-wavelength observations of the tidal disruption event (TDE) 2024aepd, spanning primarily the first $\\sim$300 days after discovery. A prominent near-infrared (NIR) excess is detected as early as $\\sim$40 days. Its nearly flat power-law spectrum strongly deviates from the Rayleigh-Jeans tail of the UV-optical blackbody. Although a conventional dust-echo origin cannot be completely ruled out, free-free emission from a reprocessing photospheric envelope provides a more plausible explanation. The spectral break between the UV-optical and NIR components shifts to higher frequencies, while the inferred density-profile index remains nearly constant, suggesting evolving reprocessing conditions within a broadly unchanged density structure. In addition, the X-ray spectrum is initially dominated by a thermal disk component accompanied by a hard excess. From $\\sim$178 days onward, the spectrum becomes power-law dominated and subsequently hardens, indicating the rapid emergence and strengthening of a hot corona. These results provide evidence for frequency-dependent reprocessing at early times and for the rapid development of a disk-corona system, placing new constraints on the structure and evolution of the reprocessing layer around supermassive black holes.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.14696",
  "author_total": 41,
  "authors": [
    {
      "name": "Yongxin Wu"
    },
    {
      "name": "Yanan Wang"
    },
    {
      "name": "Thomas M. Reynolds"
    },
    {
      "name": "Shuyuan Wei"
    },
    {
      "name": "Shiyan Zhong"
    },
    {
      "name": "Zikun Lin"
    },
    {
      "name": "Megan Newsome"
    },
    {
      "name": "Sebastian Gomez"
    },
    {
      "name": "Iair Arcavi"
    },
    {
      "name": "Panos Charalampopoulos"
    },
    {
      "name": "Chun Chen"
    },
    {
      "name": "Rongfeng Shen"
    },
    {
      "name": "Ning-Chen Sun"
    },
    {
      "name": "David Aguado"
    },
    {
      "name": "Ismael Pérez-Fournon"
    },
    {
      "name": "Frédérick Poidevin"
    },
    {
      "name": "Zhongnan Dong"
    },
    {
      "name": "Niu Li"
    },
    {
      "name": "Weijian Guo"
    },
    {
      "name": "Hu Zou"
    },
    {
      "name": "Jingbo Sun"
    },
    {
      "name": "Nieves Castro-Rodríguez"
    },
    {
      "name": "Antonio Cabrera-Lavers"
    },
    {
      "name": "Ning Jiang"
    },
    {
      "name": "Hengxiao Guo"
    },
    {
      "name": "J. P. Anderson"
    },
    {
      "name": "Tomás E. Müller-Bravo"
    },
    {
      "name": "Seppo Mattila"
    },
    {
      "name": "Claudia P. Gutiérrez"
    },
    {
      "name": "Amit Kumar"
    },
    {
      "name": "G. Pignata"
    },
    {
      "name": "Xiangkun Liu"
    },
    {
      "name": "R. Dastidar"
    },
    {
      "name": "Brajesh Kumar"
    },
    {
      "name": "Xiaowei Liu"
    },
    {
      "name": "Bin Ma"
    },
    {
      "name": "M. Dennefeld"
    },
    {
      "name": "Francesca Onori"
    },
    {
      "name": "Lydia Makrygianni"
    },
    {
      "name": "Mariusz Gromadzki"
    },
    {
      "name": "Xuan Fang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/akjkvp0mnre5v.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.14696",
  "fulltext_url": null,
  "id": "akjkvp0mnre5v",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.14696",
  "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.HE"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.14696",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/akjkvp0mnre5v.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2607.14696",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.14696"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "Early Near-Infrared Excess and Rapid Disk-Corona Evolution in the Tidal Disruption Event 2024aepd",
  "title_text": "Early Near-Infrared Excess and Rapid Disk-Corona Evolution in the Tidal Disruption Event 2024aepd",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/akjkvp0mnre5v",
  "venue": "arXiv",
  "versions": []
}