Determination of Cosmology and Evolution from K-band Magnitude–redshift and Number Count Observations
نویسنده
چکیده
We determine cosmological and evolutionary parameters from the 3CRK-band Hubble diagram and K-band number counts, assuming that the galaxies in question undergo pure luminosity evolution. Separately the two data sets are highly degenerate with respect to choice of cosmological and evolutionary parameters, but in combination the degeneracy is resolved. Of models which are either flat or have ΩΛ = 0, the preferred ones are close to the canonical case ΩCold Matter = 1, ΩΛ = 0, with luminosity evolution amounting to one magnitude brighter at z = 1.
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تاریخ انتشار 2001