{
  "id": "astro-ph/9901405",
  "version": "v4",
  "published": "1999-01-29T00:03:51.000Z",
  "updated": "1999-12-07T15:33:46.000Z",
  "title": "Observation of Cosmic Acceleration and Determining the Fate of the Universe",
  "authors": [
    "Glenn Starkman",
    "Mark Trodden",
    "Tanmay Vachaspati"
  ],
  "comment": "4 pages;important changes in conclusion; published in Phys. Rev. Lett",
  "journal": "Phys.Rev.Lett. 83 (1999) 1510-1513",
  "doi": "10.1103/PhysRevLett.83.1510",
  "categories": [
    "astro-ph",
    "gr-qc"
  ],
  "abstract": "Current observations of Type Ia supernovae provide evidence for cosmic acceleration out to a redshift of $z \\lsim 1$, leading to the possibility that the universe is entering an inflationary epoch. However, inflation can take place only if vacuum-energy (or other sufficiently slowly redshifting source of energy density) dominates the energy density of a region of physical radius 1/H. We argue that for the best-fit values of $\\Omega_\\Lambda$ and $\\Omega_m$ inferred from the supernovae data, one must confirm cosmic acceleration out to at least $z \\simeq 1.8$ to infer that the universe is inflating.",
  "revisions": [
    {
      "version": "v4",
      "updated": "1999-12-07T15:33:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "energy density",
      "confirm cosmic acceleration",
      "type ia supernovae",
      "determining",
      "supernovae data"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 494640
    }
  }
}