Figure 12

Zoom-in on the gas cloud that forms at the center of an atomic cooling halo, showing the number density of hydrogen nuclei. Clockwise from the top left, the width of the individual cubes are 10 pc, 1 pc, 0.1 pc, \(1\text{,}000\mbox { au}\), 100 au, and 10 au. The cloud has an irregular morphology that continues to change shape and orientation throughout the collapse. The filamentary structure indicates that turbulence is present on all scales. Adapted from Becerra et al. (2014).