{
  "id": "1402.2336",
  "version": "v2",
  "published": "2014-02-11T00:12:24.000Z",
  "updated": "2014-06-23T20:26:46.000Z",
  "title": "Higher moments of primordial non-Gaussianity and N-body simulations",
  "authors": [
    "Saroj Adhikari",
    "Sarah Shandera",
    "Neal Dalal"
  ],
  "comment": "35 pages, 14 figures, minor corrections and clarifications added to the text to match the JCAP published version",
  "journal": "JCAP06(2014)052",
  "doi": "10.1088/1475-7516/2014/06/052",
  "categories": [
    "astro-ph.CO"
  ],
  "abstract": "We perform cosmological N-body simulations with non-Gaussian initial conditions generated from two independent fields. The dominant contribution to the perturbations comes from a purely Gaussian field, but we allow the second field to have local non-Gaussianity that need not be weak. This scenario allows us to adjust the relative importance of non-Gaussian contributions beyond the skewness, producing a scaling of the higher moments different from (and stronger than) the scaling in the usual single field local ansatz. We compare semi-analytic prescriptions for the non-Gaussian mass function, large scale halo bias, and stochastic bias against the simulation results. We discuss applications of this work to large scale structure measurements that can test a wider range of models for the primordial fluctuations than is usually explored.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2014-06-23T20:26:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "n-body simulations",
      "higher moments",
      "primordial non-gaussianity",
      "usual single field local ansatz",
      "large scale structure measurements"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP",
      "journal": "Journal of Cosmology and Astro-Particle Physics",
      "year": 2014,
      "month": "Jun",
      "volume": 2014,
      "number": 6,
      "pages": "052"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 35,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1280887,
      "adsabs": "2014JCAP...06..052A"
    }
  }
}