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One of the principal goals of the quasar investigations is to study luminosity evolution. A convenient one-parameter model for luminosity says that the expected log luminosity, T*, increases linearly as θ0· log(1 + Z*), and T*(θ0) = T* − θ0· log(1 + Z*) is independent of Z*, where Z* is the redshift of a quasar and θ0 is the true value of evolution parameter. Due to experimental constraints,...
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