{
  "id": "astro-ph/0012153",
  "version": "v2",
  "published": "2000-12-07T18:04:20.000Z",
  "updated": "2001-07-30T23:01:28.000Z",
  "title": "Position-Space Description of the Cosmic Microwave Background and Its Temperature Correlation Function",
  "authors": [
    "Sergei Bashinsky",
    "Edmund Bertschinger"
  ],
  "comment": "The version accepted for publication in Phys. Rev. Letters. 4 pages, 3 figures",
  "journal": "Phys.Rev.Lett. 87 (2001) 081301",
  "doi": "10.1103/PhysRevLett.87.081301",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We suggest that the cosmic microwave background (CMB) temperature correlation function C(theta) as a function of angle provides a direct connection between experimental data and the fundamental cosmological quantities. The evolution of inhomogeneities in the prerecombination universe is studied using their Green's functions in position space. We find that a primordial adiabatic point perturbation propagates as a sharp-edged spherical acoustic wave. Density singularities at its wavefronts create a feature in the CMB correlation function distinguished by a dip at theta ~ 1.2 deg. Characteristics of the feature are sensitive to the values of cosmological parameters, in particular to the total and the baryon densities.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2001-07-30T23:01:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cosmic microwave background",
      "temperature correlation function",
      "position-space description",
      "primordial adiabatic point perturbation propagates",
      "cmb correlation function"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 549019
    }
  }
}