{
  "abstract": "The Magellanic Bridge stellar population is a relic of the tidal interaction between the Large and Small Magellanic Clouds. A comprehensive view of the evolution of the Bridge stellar population requires probing the compact remnants of stellar evolution, otherwise hidden at optical wavelengths. The all-sky survey conducted by the eROSITA instrument on-board the Spectrum Roentgen Gamma observatory has discovered a significant population of compact-object-powered systems in the Bridge using X-ray. The candidate super-soft source eRASSU J043115.8-711730 (hereafter J0431-71) was discovered as a part of this campaign, and we present here a deeper study of this source using XMM-Newton and SALT spectroscopy, long-term optical-infrared photometry using OGLE, ATLAS, ASAS-SN, WISE, and GAIA data. J0431-71 is a highly variable super-soft X-ray source, classified as a red giant with the GAIA color-magnitude diagram. The source exhibits: (a) a thermal X-ray spectrum with a temperature of kT$\\sim$30 eV and a bright state luminosity of $3.2\\times10^{37}$~erg~s$^{-1}$ in the 0.15-1 keV band, (b) Balmer emission lines, [Fe X] coronal line, HeII emission, and the Bowen fluorescence blend, (c) an optical and infrared periodicity of $\\sim$500-560 days in phase with the X-ray-UV emission, (d) a 'redder-when-brighter' trend in the stellar emission with a $\\sim$520 day period indicating a pulsating donor star. We argue that the observed spectral and temporal properties in J0431-71 are consistent with a high-accretion rate onto a white-dwarf via Roche-lobe overflow, making J0431-71 the first symbiotic source discovered in the Bridge.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Mon Not R Astron Soc (2026)",
  "arxiv": "2607.27730",
  "author_total": 12,
  "authors": [
    {
      "name": "Tathagata Saha"
    },
    {
      "name": "Chandreyee Maitra"
    },
    {
      "name": "Philip Charles"
    },
    {
      "name": "Frank Haberl"
    },
    {
      "name": "David Kaltenbrunner"
    },
    {
      "name": "Andrzej Udalski"
    },
    {
      "name": "David Buckley"
    },
    {
      "name": "Itumeleng Monageng"
    },
    {
      "name": "Lee Townsend"
    },
    {
      "name": "Manami Sasaki"
    },
    {
      "name": "Sara Saeedi"
    },
    {
      "name": "Mara Salvato"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4bp61j9vk38t2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.27730",
  "fulltext_url": null,
  "id": "4bp61j9vk38t2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.27730",
  "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/2607.27730",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4bp61j9vk38t2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:52Z",
      "native_id": "2607.27730",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.27730"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "eRASSU J043115.8-711730 :the first pulsating symbiotic super-soft X-ray source in the Magellanic Bridge",
  "title_text": "eRASSU J043115.8-711730 :the first pulsating symbiotic super-soft X-ray source in the Magellanic Bridge",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:52Z",
  "url": "https://research.draconitic.com/paper/4bp61j9vk38t2",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1474",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}