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Fig. 3

image

Comparison of the VLT/SPHERE deconvolved images of Vesta (left column) with synthetic projections of the Dawn model produced with OASIS and with albedo information from Schröder et al. (2014; middle column), and the same projection without albedo information but with a latitude/longitude coordinate grid for reference (right column). All coordinates are given in the “Claudia” system (Russell et al. 2012). No albedo data is available from Dawn for latitudes above 30°N (orange line). Finally, some of the main structures that can be identified in both the VLT/SPHERE images and the synthetic ones are highlighted: craters are embedded in squares and albedo features in circles. The square of the intensity is shown forthe left and middle columns to highlight the surface features. Deconvolved images for the two last epochs (phase 0.43 and 0.60) show a clear-dark-clear border on the left. This deconvolution artefact seems to be the outset of the corona artefact discussed in the text.

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