Fig. 4.

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Surface-brightness, age, and metallicity radial profiles of the galaxy, dynamically cold disk, and dynamically hot non-disk component for the sample galaxies. We divided the galaxies into two groups: 11 galaxies with a dynamically cold disk extended out to large radii (left panels) and 9 galaxies with a dynamically cold disk concentrated in the inner regions (right panels). The radial profiles are color-coded by the galaxy stellar mass. The shadowed areas indicates the scatter of the profiles of models that fall within the 1σ confidence level of the model hyper-parameters. Dashed lines refer to the four LTGs without orbits tagged with age and metallicity. The age and metallicity radial profiles of the dynamically cold disks are considered reliable and shown in the regions where the dynamically cold disk contributes at least 10% of galaxy surface-brightness. Therefore, these profiles are available only for a limited radial range for the galaxies with a concentrated cold disk.
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