{
  "abstract": "Using the Swift-Perley sample, Le, Ratke, & Mehta performed a study of the rate density of LGRBs with an assumed broken power-law GRB spectrum. They obtained a GRB-burst-rate functional form that fits the preSwift~and Swift~redshift cumulative distributions at all redshifts with an assumed Hubble constant of $H_0 = 72 \\, {\\rm km \\, s^{-1} \\, Mpc^{-1}}$. Further analysis indicated that the cumulative redshift distribution is weakly sensitive to variations in the Hubble constant $H_0$, whereas the corresponding differential burst-rate distribution exhibits greater sensitivity. In this paper, we extend this analysis by comparing model predictions for different values of $H_0$ with the observed cumulative and differential redshift and jet-opening angle distributions, while adopting the same GRB framework and observational samples. We find that both the cumulative and differential distributions depend only weakly on variations in $H_0$, and the model predictions using $H_0 \\approx 68 - 80 \\, {\\rm km \\, s^{-1} \\, Mpc^{-1}}$ provide agreement with the observed LGRB distributions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.14204",
  "author_total": 2,
  "authors": [
    {
      "name": "Truong Le"
    },
    {
      "name": "Joseph Chromicz"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/32j8spcy61fdh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.14204",
  "fulltext_url": null,
  "id": "32j8spcy61fdh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.14204",
  "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",
      "3103|Gamma-ray bursts and supernovae"
    ]
  ],
  "openalex": "W7213257078",
  "pdf_url": "https://arxiv.org/pdf/2609.14204",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/32j8spcy61fdh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.14204",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.14204"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "The LGRBs Redshift and Jet Opening Angle Distributions and the Hubble Constant $H_0$",
  "title_text": "The LGRBs Redshift and Jet Opening Angle Distributions and the Hubble Constant H_0",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/32j8spcy61fdh",
  "venue": "arXiv",
  "versions": []
}