{
  "abstract": "Aims. We report on the first X-ray detection of the symbiotic star CN Cha with eROSITA (extended Roentgen Survey with an Imaging Telescope Array) onboard Spektrum-Roentgen Gamma (Spektr-RG). Methods. We analyse the eROSITA observations from eRASS2 to eRASS5 individually, as well as the combined eRASS:5 data of all five surveys in order to investigate the X-ray spectral and timing properties of CN Cha throughout the eRASS. Results. Although CN Cha was not detected during the first eROSITA All-Sky Survey (eRASS1), it was detected for the first time in the second eRASS2. Our analysis shows that the X-ray emission of CN Cha gradually increased from eRASS2 to eRASS5. The X-ray spectrum of the source, with the main emission at <2.4 keV, allows us to classify it as a \\b{eta}-type symbiotic star. However, a more detailed analysis suggests that there is very soft component, which may originate either from thermonuclear burning on the white dwarf, or from the wind collisions. Additional X-ray observations are required to better understand the origin and emission mechanisms of the source.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28079",
  "author_total": 5,
  "authors": [
    {
      "name": "Sara Saeedi"
    },
    {
      "name": "Jaroslav Merc"
    },
    {
      "name": "Manami Sasaki"
    },
    {
      "name": "Lorenzo Ducci"
    },
    {
      "name": "Michael Freyberg"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cxxhrtrskdecy.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28079",
  "fulltext_url": null,
  "id": "cxxhrtrskdecy",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28079",
  "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.HE"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.28079",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cxxhrtrskdecy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.28079",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28079"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "First X-ray detection of symbiotic nova CN Cha with eROSITA/SRG",
  "title_text": "First X-ray detection of symbiotic nova CN Cha with eROSITA/SRG",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/cxxhrtrskdecy",
  "venue": "arXiv",
  "versions": []
}