{
  "id": "1512.03656",
  "version": "v1",
  "published": "2015-12-11T14:29:07.000Z",
  "updated": "2015-12-11T14:29:07.000Z",
  "title": "Testing the cores of first ascent red-giant stars using the period spacing of g modes",
  "authors": [
    "Nadège Lagarde",
    "Diego Bossini",
    "Andrea Miglio",
    "Mathieu Vrard",
    "Benoit Mosser"
  ],
  "comment": "5pages, 6 figures",
  "doi": "10.1093/mnrasl/slv201",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "In the context of the determination of stellar properties using asteroseismology, we study the influence of rotation and convective-core overshooting on the properties of red-giant stars. We used models in order to investigate the effects of these mechanisms on the asymptotic period spacing of gravity modes ($\\Delta \\Pi_1$) of red-giant stars that ignite He burning in degenerate conditions (M$\\lesssim$2.0 M$_{\\odot}$). We also compare the predictions of these models with Kepler observations. For a given $\\Delta\\nu$, $\\Delta \\Pi_1$ depends not only on the stellar mass, but also on mixing processes that can affect the structure of the core. We find that in the case of more evolved red-giant-branch (RGB) stars and regardless of the transport processes occurring in their interiors, the observed $\\Delta \\Pi_1$ can provide information as to their stellar luminosity, within ~10-20%. In general, the trends of $\\Delta \\Pi_1$ with respect to mass and metallicity that are observed in Kepler red-giant stars are well reproduced by the models.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-12-11T14:29:07.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "first ascent red-giant stars",
      "period spacing",
      "kepler red-giant stars",
      "stellar properties",
      "transport processes"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}