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The Power Spectrum of Mass Fluctuations Measured from the Lyα Forest at Redshift<i>z</i> = 2.5
We measure the linear power spectrum of mass-density fluctuations at redshift z = 2.5 from the Lyα forest absorption in a sample of 19 QSO spectra, using the method introduced by Croft et al. The P(k) measurement covers the range 2π/k ~ 450-2350 km s-1 (2-12 comoving h-1 Mpc for …