Extended Data Fig. 5: Deconvolution of LS 4825’s H i spectrum.
From: Diverse metallicities of Fermi bubble clouds indicate dual origins in the disk and halo
Left: LS 4825’s and HD 167402’s H i spectra plotted against HD 167402’s low-velocity Milky Way component and LS 4825’s residual H i spectrum after subtracting HD 167402’s low-velocity Milky Way component. We also plot LS4825’s O i λ1302 and C i λ1560 spectrum for comparison. Right: The individual and combined Gaussian fits to LS 4825’s residual negative-velocity components.