Fig. 1: Experimental setup and protocol.
From: Enhanced star formation through the high-temperature formation of H2 on carbonaceous dust grains

Comparison between M4 (D2, m/z 4) signals by using coronene (black line, Ts = 250 K) and c-ASW (light blue line, Ts = 100 K) as surfaces (left); four schematic configurations of FORMOLISM including position and role of the flag, position of the QMS associated to the four divisions of the signal shown on the left (right). The green lines show the values of the recombination efficiencies (ε).