The predicted 1D flux power spectrum (P₁D) from the PRIYA emulator, as a function k [s/km] for different redshifts. These are the Fourier transforms of the 1D sightlines of neutral hydrogen absorptions, which naturally include the peculiar velocities and hydrodynamics of the intergalactic medium (IGM). Use the dropdown to select a physical parameter and explore how variations affect P₁D across redshift bins z = 2.6-4.2. The widget inspired by this CMB widget and d3 example.