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Fig. 17

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Rossby number versus normalised X-ray luminosity (blue diamonds). The Rossby number and the filling factor are connected by Eq. (118). Results for the fixed half loop length lloop =20 Mm are shown. Also shown, by the solid and dashed lines, are the observational relation by Pizzolato et al. (2003) and its scaled-down version (1/8).

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