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Fig. 3


WISEcolours of the present sample of RLNLS1s (filled orange stars indicated the γ-ray detected RLNLS1s). Different characteristic regions are also plotted: the blazar WISE Gamma-ray Strip (WGS) for BL Lacs (dashed line) and FSRQs (dotted line), as defined by Massaro et al. (2012) and the AGN wedge (dot-dashed line) as defined by Mateos et al. (2012; 2013) for X-ray selected AGNs. The continuous line corresponded to a power-law emission (Sννα) with α ranging from ~ − 0.5 to ~ + 2.5.

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