Deprojecting the surface brightness profile of NGC 4636. Upper sub-panel: R-band surface brightness profile. The data points are from D05+ (their Table A.4), and the dashed line is the fit given by D+05 (Eq. (7)). The solid line is the three-component fit given in Eq. (8), and the thin solid lines show the individual components. Bottom sub-panel: luminosity density profiles in units of L⊙ pc-3. The dashed line was obtained by numerically integrating Eq. (7). The solid line is the analytical deprojection of Eq. (8); again, the components are shown as thin solid lines. The vertical dotted lines indicate the radial range of the data points shown in the upper panel.
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