Image Details
Caption: Figure 13.
The 68% contour star formation rate density as a function of density for the physical model result presented here, and Model A (including a fit to luminosity density and γ-ray optical-depth data) and Model B (which only did a fit to γ-ray optical-depth data), and the curves from P. Madau & M. Dickinson (2014) and P. Madau & T. Fragos (2017). The symbols are the same measurements in Figure 11.
© 2026. The Author(s). Published by the American Astronomical Society.