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  • Karpenka, Natalia V., et al. (author)
  • Testing the mutual consistency of different supernovae surveys
  • 2015
  • In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 449:3, s. 2405-2412
  • Journal article (peer-reviewed)abstract
    • It is now common practice to constrain cosmological parameters using supernovae (SNe) catalogues constructed from several different surveys. Before performing such a joint analysis, however, one should check that parameter constraints derived from the individual SNe surveys that make up the catalogue are mutually consistent. We describe a statistically-robust mutual consistency test, which we calibrate using simulations, and apply it to each pairwise combination of the large surveys making up, respectively, the UNION2 catalogue and the very recent JLA (joint light-curve analysis) compilation by Betoule et al. We find no inconsistencies in the latter case, but conclusive evidence for inconsistency between some survey pairs in the UNION2 catalogue.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Feroz, F. (1)
Hobson, M. P. (1)
Karpenka, Natalia V. (1)
University
Stockholm University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2015 (1)Undo refine

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