Constraints on cosmological parameters from the analysis of the Cosmic Lens All Sky Survey radio-selected gravitational lens statistics

K. H. Chae, A. D. Biggs, R. D. Blandford, I. W A Browne, A. G. De Bruyn, C. D. Fassnacht, P. Helbig, N. J. Jackson, L. J. King, L. V E Koopmans, S. Mao, D. R. Marlow, J. P. McKean, S. T. Myers, M. Norbury, T. J. Pearson, P. M. Phillips, A. C S Readhead, D. Rusin, C. M. SykesP. N. Wilkinson, E. Xanthopoulos, T. York

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The likelihood function of the Cosmic Lens All Sky Survey (CLASS) data has well-defined confidence regions in the parameter space defined by the cosmological and galactic parameters. As such, the determined value of Ωm in flat cosmologies is found to be in good agreement with several recent independent determinations. Compared with previous works in lens statistics, the results imply not only positive but higher dark-energy density.
    Original languageEnglish
    Pages (from-to)151301/4
    JournalPhysical Review Letters
    Volume89
    Issue number15
    DOIs
    Publication statusPublished - 7 Oct 2002

    Keywords

    • COSMOLOGY
    • DARK MATTER
    • EQUATIONS OF STATE
    • GRAVITATIONAL LENSES
    • RADIO GALAXIES
    • SKY SURVEYS (ASTRONOMY)
    • STATISTICAL ANALYSIS
    • UNIVERSE

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