Fig. 3: Correlations between the three main ice species, H2O, CO and CO2, in Cha I.
From: Cospatial ice mapping of H2O with CO2 and CO across a molecular cloud with JWST/NIRCam
Left, maps of the ice ratios CO2 to H2O, CO to H2O and CO2 to CO. These maps are obtained by dividing one ice species' column density map (Fig. 2) by another. Right, correlation plots between CO2 and H2O, CO and H2O, and CO2 and CO measured towards background stars. Ice column densities and errors are presented as those in Fig. 2. Our data for Cha I are compared with literature values from studies on all three main ice species in Extended Data Fig. 4. The two representations of the same ice column density correlations allow visualization of the distribution as a function of spatial position (left) or total column density (right).
