{
  "id": "1005.2237",
  "version": "v1",
  "published": "2010-05-13T01:13:40.000Z",
  "updated": "2010-05-13T01:13:40.000Z",
  "title": "Effects of Hardness of Primordial Binaries on Evolution of Star Clusters",
  "authors": [
    "Ataru Tanikawa",
    "Toshiyuki Fukushige"
  ],
  "journal": "PASJ, 61 (2009), 721-736",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We investigate effects of hardness of primordial binaries on whole evolution of star clusters by means of N-body simulations. Using newly developed code, GORILLA, we simulated eleven N=16384 clusters with primordial binaries whose binding energies are equal in each cluster in range of 1-300kT_0, where 1.5kT_0 is average stellar kinetic energy at the initial time. We found that, in both soft (< 3kT_0) and hard (> 300kT_0) limits, clusters experience deep core collapse. In the intermediate hardness (10-100kT_0), the core collapses halt halfway due to an energy releases of the primordial binaries. The core radii at the halt can be explained by their energy",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-05-13T01:13:40.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "primordial binaries",
      "star clusters",
      "clusters experience deep core collapse",
      "core collapses halt halfway",
      "average stellar kinetic energy"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1093/pasj/61.4.721",
      "journal": "Publications of the Astronomical Society of Japan",
      "year": 2009,
      "month": "Aug",
      "volume": 61,
      "pages": 721
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 855773,
      "adsabs": "2009PASJ...61..721T"
    }
  }
}