{
  "id": "1506.01265",
  "version": "v1",
  "published": "2015-06-03T14:46:24.000Z",
  "updated": "2015-06-03T14:46:24.000Z",
  "title": "Abundance analysis of HD 22920 spectra",
  "authors": [
    "Viktor Khalack",
    "Patrick Poitras"
  ],
  "comment": "2 pages, 1 figure, in Proc. of IAUS 307",
  "journal": "Proceedings of the International Astronomical Union, 2015, IAU Symposium, Volume 307, pp. 383-384",
  "doi": "10.1017/S1743921314007182",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "The new spectropolarimetric observations of HD 22920 with ESPaDOnS at CFHT reveal a strong variability of its spectral line profiles with the phase of stellar rotation. We have obtained Teff = 13640 K, logg=3.72 for this star from the best fit of its nine Balmer line profiles. The respective model of stellar atmosphere was calculated to perform abundance analysis of HD 22920 using the spectra obtained for three different phases of stellar rotation. We have found that silicon and chromium abundances appear to be vertically stratified in the atmosphere of HD 22920. Meanwhile, silicon shows hints for a possible variability of vertical abundance stratification with rotational phase.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-06-03T14:46:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "stellar rotation",
      "chromium abundances appear",
      "perform abundance analysis",
      "balmer line profiles",
      "spectral line profiles"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015IAUS..307..383K"
    }
  }
}