From top to bottom: Gas number density (n_g), total magnetic field strength (B) with streamlines whose width is proportional to the field strength, thermal electron density (n_th), and CR electron density (n_CR) in 1-pc-thick cuts of the simulation domain centered on the Local Bubble analog. In the upper panels, the yellow and red line segments mark the contours of the inner and outer edges of the Local Bubble analog as identified by Maconi et al. (2023), respectively. The yellow crosses indicate the position of the observer in the synthetic observations.