{
  "abstract": "We present a systematic X-ray spectral analysis of 27 giant radio galaxies (GRGs) using archival \\textit{XMM-Newton} and \\textit{Chandra} data. Roughly 44\\% of the sample show intrinsic absorption ($N_{\\mathrm{H,int}} \\gtrsim 10^{21}\\,\\mathrm{cm}^{-2}$), while several exhibit narrow Fe K$α$ emission lines with equivalent widths up to $\\sim$570 eV. Soft X-ray features are also common, including thermal plasma emission (kT$\\sim 0.2$--0.8 keV) and ionized absorbers, in some cases consistent with high-velocity outflows. The photon indices are typically hard (median $ Γ\\sim 1.6$), in line with radio-loud AGN. A comparison between nuclear X-ray luminosity and extended radio power shows that many sources host relatively strong X-ray cores compared to their lobes, pointing toward possible restarted nuclear activity. For 10 GRGs with published black hole masses, we explore preliminary relations with X-ray luminosity, Eddington ratio, and photon index. We find a positive trend between $M_{\\rm BH}$ and $L_{2-10\\,{\\rm keV}}$, while Eddington ratios show no clear dependence on mass. A tentative negative relation between $λ_{\\rm Edd}$ and $Γ$ hints at inefficient accretion, although confirmation will require larger samples. Overall, GRGs display diverse nuclear conditions and accretion states, supporting scenarios where obscuration, episodic or restarted activity, and low-efficiency accretion shape their long-term evolution.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: JHEAp, 55, 2027, 100717",
  "arxiv": "2607.27754",
  "author_total": 6,
  "authors": [
    {
      "name": "Niraj Maurya"
    },
    {
      "name": "Satish S. Sonkamble"
    },
    {
      "name": "Suraj Dhiwar"
    },
    {
      "name": "M. B. Pandge"
    },
    {
      "name": "S. Ilani Loubser"
    },
    {
      "name": "Avinash Kale"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/405fd62dbrkec.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.27754",
  "fulltext_url": null,
  "id": "405fd62dbrkec",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.27754",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.GA"
    ],
    [
      "arxiv",
      "astro-ph.HE"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.27754",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/405fd62dbrkec.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2607.27754",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.27754"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "Comprehensive X-ray Study of Giant Radio Galaxies with XMM-Newton and Chandra",
  "title_text": "Comprehensive X-ray Study of Giant Radio Galaxies with XMM-Newton and Chandra",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/405fd62dbrkec",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.jheap.2026.100717",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}