{
  "abstract": "We present upgraded Giant Meterwave Radio Telescope (uGMRT) Band-3 observations of the Galaxy and Mass Assembly (GAMA)-23 field. The observations consist of a total of 33 hours spread over 50 pointings, corresponding to $\\sim$56 minutes per pointing at the central frequency of 325 MHz. The final image mosaicked from these pointings has a central off-source RMS noise of $109\\,μ\\mathrm{Jy}/\\mathrm{beam}$ and covers an area $65.31\\,\\text{deg}^2$ with a resolution of $15.8''$. This wide-area deep-field observation provides a radio source catalog of 5741 sources with flux densities ${\\geq}5σ$. We present complementary uGMRT observations overlapping with the high-frequency Australian Square Kilometre Array Pathfinder Evolutionary Map of the Universe survey. We derived the spectral index from the matched sources in the GAMA-23 field for the first time. We have studied the statistical properties of diffuse Galactic synchrotron emission (DGSE) in the GAMA-23 field using six different latitude target pointings. We fitted DGSE in the form of power law $C_{\\ell} = A(1000/{\\ell})^{β}$. Our DGSE amplitude range of $A = 1-20\\,{\\text{mK}}^2$ and $β$ varies between $1.5$ and $2.4$. This work presents one of the first characterizations of DGSE in the southern sky at 325 MHz, setting a precedent for foreground modeling required for sensitive radio observations with the upcoming SKA.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: The Astronomical Journal (2026)",
  "arxiv": "2608.05854",
  "author_total": 3,
  "authors": [
    {
      "name": "Rashmi Sagar"
    },
    {
      "name": "Abhirup Datta"
    },
    {
      "name": "Aishrila Mazumder"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0vkskhnm768r5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.05854",
  "fulltext_url": null,
  "id": "0vkskhnm768r5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.05854",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "astro-ph.GA"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.05854",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0vkskhnm768r5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2608.05854",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.05854"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Investigating radio source population and spatial characteristics of diffuse Galactic synchrotron emission in the GAMA-23 field with uGMRT Band-3",
  "title_text": "Investigating radio source population and spatial characteristics of diffuse Galactic synchrotron emission in the GAMA-23 field with uGMRT Band-3",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/0vkskhnm768r5",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.3847/1538-3881/ae9872",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}