{
  "id": "2309.02507",
  "version": "v1",
  "published": "2023-09-05T18:00:20.000Z",
  "updated": "2023-09-05T18:00:20.000Z",
  "title": "Chemical enrichment of ICM within the Centaurus cluster I: radial profiles",
  "authors": [
    "Efrain Gatuzz",
    "J. S. Sanders",
    "K. Dennerl",
    "A. Liu",
    "A. C. Fabian",
    "C. Pinto",
    "D. Eckert",
    "S. A. Walker",
    "J. ZuHone"
  ],
  "comment": "8 pages, 9 figures. This paper is part of a series on the ICM chemical enrichment using galaxy clusters XMM-Newton observations for which the velocity structure has been measured. Related series papers: arXiv:2302.04286",
  "categories": [
    "astro-ph.HE",
    "astro-ph.CO",
    "astro-ph.GA"
  ],
  "abstract": "We examine deep {\\it XMM-Newton} EPIC-pn observations of the Centaurus cluster to study the hot intracluster medium (ICM) and radial metal distributions within such an environment. We found that the best-fit spectral model corresponds to a log-normal temperature distribution, with discontinuities around $\\sim10$~kpc, $\\sim50$~kpc, and $\\sim100$~kpc, also observed in the abundances distributions. We measured the radial profiles of O, Si, S, Ar, Ca, and Fe. These profiles reveal prominent negative gradients for distances $<90$~kpc, which then transition to flatter profiles. We modeled X/Fe ratio profiles with a linear combination of SNIcc and SNIa models. The best-fit model suggests a uniform SNIa percentage contribution to the total cluster enrichment, thus supporting an early enrichment of the ICM, with most of the metals present being produced before clustering.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-09-05T18:00:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "radial profiles",
      "centaurus cluster",
      "chemical enrichment",
      "profiles reveal prominent negative gradients",
      "best-fit spectral model corresponds"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}