{
  "id": "2209.06043",
  "version": "v1",
  "published": "2022-09-13T14:50:24.000Z",
  "updated": "2022-09-13T14:50:24.000Z",
  "title": "Investigating the impact of different velocity fields on the spectral appearance of Wolf-Rayet stars",
  "authors": [
    "Roel R. Lefever",
    "Tomer Shenar",
    "Andreas A. C. Sander",
    "Luka Poniatowski",
    "Karan Dsilva",
    "Helge Todt"
  ],
  "comment": "2 pages, 1 figure, to be published in the Proceedings of the International Astronomical Union for the IAU Symposium 361 \"Massive Stars Near and Far\"",
  "doi": "10.1017/S1743921322002083",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "The emission line spectra of WR stars are often formed completely in the optically thick stellar wind. Hence, any assumption on the wind velocity law in a spectral analysis has a profound impact on the determination of the stellar parameters. By comparing Potsdam Wolf-Rayet (PoWR) model spectra calculated with different $\\beta$ laws, we show that the velocity field heavily influences the spectra: by using the appropriate $\\beta$ laws, the entire range of late and early types can be covered with the same stellar model.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-09-13T14:50:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "wolf-rayet stars",
      "spectral appearance",
      "velocity field heavily influences",
      "optically thick stellar wind",
      "wind velocity law"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}