Simulating the effect of high column density absorbers on the one-dimensional Lyman α forest flux power spectrum
Simulating the effect of high column density absorbers on the one-dimensional Lyman α forest flux power spectrum
We measure the effect of high column density absorbing systems of neutral hydrogen (HI) on the one-dimensional (1D) Lyman-alpha forest flux power spectrum using cosmological hydrodynamical simulations from the Illustris project. High column density absorbers (which we define to be those with HI column densities $N(\mathrm{HI}) > 1.6 \times 10^{17}\,\mathrm{atoms}\,\mathrm{cm}^{-2}$) …