Fig. 14
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Radio vs. X-ray luminosity. Left panel: the lowest measured X-ray luminosity in the 0.2–2.0 keV energy band, including upper limits. The black line represents the relation from Güdel & Benz (1993). Right panel: same as left panel with the radio bursts and X-ray flares presented as open squares and stars, respectively. See Sect. 5 for more details.
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