{
  "id": "1710.09312",
  "version": "v1",
  "published": "2017-10-25T15:47:14.000Z",
  "updated": "2017-10-25T15:47:14.000Z",
  "title": "Line-driven ablation of circumstellar discs: II. Analyzing the role of multiple resonances",
  "authors": [
    "Nathaniel Dylan Kee",
    "Stan Owocki",
    "Rolf Kuiper"
  ],
  "comment": "8 pages, 6 figures",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We extend our previous study of radiative ablation of circumstellar disks by line-scattering of the star's radiation, accounting now for the effect of multiple line resonances off the stellar limb. For an analytic, three-dimensional model of the velocity structure of an equatorial Keplerian disk bounded at higher latitudes by a radially accelerating stellar wind outflow, we use root-finding methods to identify multiple resonances from a near-disk circumstellar location along starward rays both on and off the stellar core. Compared to our previous study that accounted only for the effect of on-core resonances in reducing the radiative driving through the scattering of radiation away from a near-disk circumstellar location, including off-limb resonances leads to additional radiative driving from scattering toward this location. Instead of the up-to-50% reduction in line-acceleration previously inferred from multiple resonance effects, we now find a more modest 15-20% net reduction.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-10-25T15:47:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "circumstellar discs",
      "line-driven ablation",
      "near-disk circumstellar location",
      "radially accelerating stellar wind outflow",
      "equatorial keplerian disk"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}