ABSTRACT We present variability analyses of twenty pointed XMM–Newton observations the high energy peaked TeV blazar PG 1553+113 taken during 2010–2018. found intraday in total X-ray range (0.3–10 keV) 16 out 19 light curves or a duty cycle ∼84 per cent. A discrete correlation function analysis soft and hard bands peaks on zero lag, showing that emission are co-spatial emitted from same populat...
