Fig. 7
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3D view of the PPV (top row) and PPP (bottom row) spaces for the RR Pic nova shell. Hα is presented in black-red-yellow colours and [OIII] is presented in blue-green colours. In both cases, the brighter regions are presented in lighter colours. The angles of the frames were chosen so the circular ring (left column) and the polar filaments (right column) could be better appreciated.
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