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Fig. 3

image

Average and rescaled to 1010 Hz SEDs of three well-known and representative HSP blazars: MKN 421, MKN 501, and PKS 21553304, and one LSP, 3C279. The solid lines represent the radio to infrared and infrared to X-ray slope limits used in our selection criteria, which are highly effective in differentiating HSP- from LSP-like SEDs.

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