Figure 4.

Relationship between peak brightness temperature and wavelength for a set of isothermal-isobaric fine-structure models. Each colour corresponds to an isothermal temperature (K), as described in the colour bar to the right. Each symbol corresponds to an isobaric pressure ($\text{dyn}{\text{cm}}^{-2}$), as described in the legend. The two grey-shaded areas depict ALMA observing Bands 6 and 3.