SOFIA FEEDBACK Survey: PDR Diagnostics of Stellar Feedback in Different Regions of RCW 49

We quantified the effects of stellar feedback in RCW 49 by determining physical conditions different regions using [CII] 158 $\mu$m and [OI] 63 observations from SOFIA, $^{12}$CO (3-2) APEX H$_2$ line Spitzer telescopes. Large maps were observed with SOFIA telescopes, while only available towards three small areas. From our qualitative analysis, we found that 0-0 S(2) emission probes denser gas compared to S(1) line. In four ("northern cloud", "pillar", "ridge", "shell"), updated PDR Toolbox models derived integrated far-ultraviolet flux between 6-13.6 eV ($G_{\rm 0}$), H nucleus density ($n$), temperatures pressures. ridge have highest $G_{\rm 0}$ (2.4 $\times$ 10$^3$ Habing units), northern cloud has lowest (5 10$^2$ units). This is a direct consequence location these respect Wd2 cluster. The also high (6.4 cm$^{-3}$), which consistent its ongoing star formation. Among positions, one closest cluster be densest, suggesting an early phase Furthermore, position overlaps shell was expect this result proximity O9V star.