{
  "id": "2407.05906",
  "version": "v1",
  "published": "2024-07-08T13:12:44.000Z",
  "updated": "2024-07-08T13:12:44.000Z",
  "title": "The leakage of Lyman-continuum photons from a major merger at $z\\sim1$",
  "authors": [
    "Soumil Maulick",
    "Kanak Saha",
    "Manish Kataria",
    "Edmund Christian Herenz"
  ],
  "comment": "16 pages, 8 figures, 1 table (Accepted for publication in ApJ)",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We report the detection of Lyman-continuum (LyC) photons from a massive interacting system at $z=1.097$ in the Hubble Ultra Deep Field. The LyC detection is made in the far-ultraviolet F154W band of the UVIT telescope onboard AstroSat. Both JWST and HST imaging of the system reveal signs that it is a likely merger. In particular, high-resolution imaging in the JWST bands reveals an infrared luminous object within the system that is faint in the bluer HST bands. The ionized-gas kinematics from the MUSE-UDF data supports the merger hypothesis. We estimate that the entire system is leaking more than $8 \\%$ of its ionizing photons to the intergalactic medium. The SED-derived stellar masses of the two components indicate that this is a major merger with a mass ratio of ${1.13 \\pm 0.37}$. This detection hints at the potential contribution of massive interacting systems at higher redshifts, when major mergers were more frequent, to the ionizing budget of the universe.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-07-08T13:12:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "major merger",
      "lyman-continuum photons",
      "massive interacting system",
      "uvit telescope onboard astrosat",
      "bluer hst bands"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}