Fig. 3

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Colour magnitude diagram G vs. (BP-RP) with known RCB stars. Top: Diagram colour-coded by the maximum G-band variation observed in their respective Gaia light curve. The luminosity region containing RCB stars that went under a long decline events is indicated. Bottom: Diagram colour-coded by the visual interstellar extinction Av that was limited at a value of 10 mag. The arrow indicates the reddening effect of a 2 mag extinction.
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