{
  "id": "1509.06382",
  "version": "v1",
  "published": "2015-09-21T20:14:48.000Z",
  "updated": "2015-09-21T20:14:48.000Z",
  "title": "Physical processes in protoplanetary disks",
  "authors": [
    "Philip J. Armitage"
  ],
  "comment": "128 pages, draft of lectures given at the 45th Saas-Fee Advanced Course \"From Protoplanetary Disks to Planet Formation\". Illustrations and movies at http://jila.colorado.edu/~pja/saas-fee.html",
  "categories": [
    "astro-ph.SR",
    "astro-ph.EP"
  ],
  "abstract": "This review introduces physical processes in protoplanetary disks relevant to accretion and the initial stages of planet formation. After reprising the elementary theory of disk structure and evolution, I discuss the gas-phase physics of angular momentum transport through turbulence and disk winds, and how this may be related to episodic accretion observed in Young Stellar Objects. Turning to solids, I review the evolution of single particles under aerodynamic forces, and describe the conditions necessary for the development of collective gas-particle instabilities. Observations show that disks are not always radially smooth axisymmetric structures, and I discuss how gas and particle processes can interact to form observable large-scale structure (at ice lines, vortices and in zonal flows). I conclude with disk dispersal.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-09-21T20:14:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "physical processes",
      "young stellar objects",
      "radially smooth axisymmetric structures",
      "form observable large-scale structure",
      "angular momentum transport"
    ],
    "tags": [
      "lecture notes"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 128,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv150906382A"
    }
  }
}