Using the values obtained from the previous fit:

  • \(\beta_{\mathrm{He}}\) = 0.41
  • \(\beta_{\mathrm{H}}\) = 0.82
  • \(\Delta z_{\mathrm{He}}\) = 0.13
  • Varying \(\Delta z_{\mathrm{H}}\)

UVB Rates

Trajectories for \(T_0\) and \(\tau_{eff}\)

Fitting to \(T_0\) and \(\tau_{eff}\)