{
  "id": "astro-ph/9511095",
  "version": "v1",
  "published": "1995-11-20T17:54:57.000Z",
  "updated": "1995-11-20T17:54:57.000Z",
  "title": "Infall Collapse Solutions in the Inner Limit: Radiation Pressure and its Effects on Star Formation",
  "authors": [
    "Jasmin Jijina",
    "Fred C. Adams"
  ],
  "comment": "28 pages, 7 uuencoded figs; accepted by ApJ",
  "journal": "Astrophys.J.462:874,1996",
  "doi": "10.1086/177201",
  "categories": [
    "astro-ph"
  ],
  "abstract": "In this paper, we study infall collapse solutions for star formation in the small radius limit where the particle orbits become nearly pressure-free. We generalize previous solutions to simultaneously include the effects of both radiation pressure and angular momentum. The effects of radiation pressure can be modeled using a modified potential; for representative cases of such potentials, we obtain analytical solutions for the density and velocity fields. In general, radiation pressure limits the maximum mass of a forming star by reversing the infall when the star becomes sufficiently large. Our results imply that this maximum mass scale is given by the condition that the turnaround radius $R_R$ (the radius at which the radiation pressure force exceeds the gravitational force) exceeds the centrifugal radius $R_C$ (the angular momentum barrier). The maximum mass scale for a star forming within a rotating collapse flow with radiation pressure depends on the initial conditions, but is generally much larger than for the case of spherical infall considered previously. In particular, stars with masses $M_\\ast$ $\\sim 100$ $M_\\odot$ can form for a fairly wide range of initial conditions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1995-11-20T17:54:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star formation",
      "inner limit",
      "maximum mass scale",
      "angular momentum",
      "study infall collapse solutions"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 28,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 402533
    }
  }
}