Extended Data Fig. 1: The impact of inclinations on the observed HI line width.
From: Black holes regulate cool gas accretion in massive galaxies

The relation between M⋆ and the observed HI line width are shown in panels (a, c), while the relation between M⋆ and the inclination-corrected HI line width are shown in panels(b, d), for MaNGA and xGASS galaxies respectively. The error bars refer to 1-σ errors for logM⋆. For W50, we denote 20% measurement uncertainties.