{
  "id": "2407.21160",
  "version": "v1",
  "published": "2024-07-30T19:56:26.000Z",
  "updated": "2024-07-30T19:56:26.000Z",
  "title": "Different behaviour of the gas-phase and stellar metallicity in the central part of MaNGA galaxies",
  "authors": [
    "I. A. Zinchenko",
    "J. M. Vilchez"
  ],
  "comment": "7 pages, 7 figures. Accepted for publication in A&A",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We quantified the disparity between gas-phase and stellar metallicity in a large galaxy sample obtained from the MaNGA DR17 survey. We found that the gas metallicity is on average closely aligned with the stellar metallicity in the centers of intermediate-mass galaxies. Conversely, the difference is notably larger within the center of massive galaxies. It reaches about -0.18~dex on average for the most massive galaxies, while for low-mass galaxies, the gas metallicity exhibits a slightly lower value than the stellar metallicity. Moreover, the most prominent instances of a reduced gas-phase metallicity in relation to stellar metallicity were observed within the centers of massive red galaxies with low specific star formation rates. Because of the absence of a correlation between the integral mass fraction of neutral gas and the disparity between gas and stellar metallicity, we suggest that the diminished gas-phase metallicity in the centers of massive galaxies might be attributed to the replenishment of gas-depleted central regions through processes such as radial gas flows or accretion from the circumgalactic medium rather than gas infall from the intergalactic medium.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-07-30T19:56:26.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "stellar metallicity",
      "central part",
      "manga galaxies",
      "massive galaxies",
      "low specific star formation rates"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}