Consequences of the COBE satellite for the inflationary scenario

Jun, 1992
7 pages
Published in:
  • Phys.Rev.Lett. 69 (1992) 3602-3605
Report number:
  • DAMTP-R-92-26,
  • FPRINT-92-18

Citations per year

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Abstract: (APS)
The discovery of the microwave background anisotropy by the Cosmic Background Explorer (COBE) satellite is in accord with the inflationary scenario. For five promising models involving a single scalar field, the coupling constants and the fluctuation spectra are calculated including a correction for gravitational radiation. The primordial density fluctuation spectrum computed from these models is not exactly scale-invariant; the spectral index is constrained to be n≳0.8 for inflation with an exponential potential (assuming that the biasing parameter for galaxies bρ<2). The implications for biased galaxy formation scenarios are discussed.
  • inflation
  • cosmic radiation: anisotropy
  • gravitational radiation
  • field theory: scalar
  • cosmological model
  • coupling constant
  • chaos
  • numerical calculations