Ultra diffuse galaxies in the MATLAS low-to-moderate density fields

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Fig. 12.

Difference of color between the galaxy and the nucleus for the MATLAS non-UDGs (gray dots) and UDGs (green squares). Top: (g − i)₀ color. Bottom: (g − r)₀ color. The black dashed lines represent equal colors for the galaxy and nucleus. We see a tendency for the nucleus to be bluer than the galaxy in the case of the UDGs.

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