Abstract

We analyse the stellar light, 4000 Å break and emission line profiles of 82 edge-on disc galaxies from the Mapping Nearby Galaxies at APO (MaNGA) survey. We characterize the stellar light profiles perpendicular to the disc plane using two parameters: (a) the power-law slope of the thick disc component and (b) the transition radius where the profile flattens. The 4000 Å break profiles perpendicular to the plane are characterized by the number of significant changes in slope (breaks) and by the change in D(4000) from inner to outer disc. The slope correlates tightly with the stellar mass of the galaxy over the stellar mass range