{
  "abstract": "Dark Energy Survey has shown that the emission light curve widths $Δt_{\\rm em}$ of supernovae increase to $Δt_{\\rm obs}$, obeying $Δt_{\\rm obs}/Δt_{\\rm em}=(1+z)^b$ with $b=1.003\\pm0.011$, excluding a nondilating redshift. We test hybrid models with $1+z=(1+z_p)(1+z_t)$ and the phenomenological stretch $(1+z_p)R(z)$, where $z_p$ is the redshift associated with the expanding parent universe cosmology, $z_t$ is a tired-light (TL) contribution, and $R$ is the hybrid-to-parent lookback-time ratio. At $z=1$, $R$ and $1+z_t$ differ by $1.3\\%$ for CCC+TL and $0.5\\%$ for $Λ$CDM+TL, and their 95\\% bands overlap the observed relation. This compatibility shows that the observations do not exclude the hybrid models, only fully nonexpanding ones.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.10582",
  "author_total": 3,
  "authors": [
    {
      "name": "Rajendra P. Gupta"
    },
    {
      "name": "Nikolaos Samaras"
    },
    {
      "name": "Utkarsh Kumar"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/86mb8vgzpmc1z.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.10582",
  "fulltext_url": null,
  "id": "86mb8vgzpmc1z",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.10582",
  "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",
      "physics.gen-ph"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7212276499",
  "pdf_url": "https://arxiv.org/pdf/2609.10582",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/86mb8vgzpmc1z.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:26Z",
      "native_id": "2609.10582",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.10582"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Cosmology and Gravitation Theories",
      "subfield": "cosmology"
    }
  ],
  "title": "Supernova Time Dilation in Hybrid Expansion-Tired-Light Cosmologies",
  "title_text": "Supernova Time Dilation in Hybrid Expansion-Tired-Light Cosmologies",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:26Z",
  "url": "https://research.draconitic.com/paper/86mb8vgzpmc1z",
  "venue": "arXiv",
  "versions": []
}