Gaur, H.; Gupta, A. C.; Lachowicz, P.; Wiita, P. J.
(2010)
We selected a sample of 24 XMM–Newton light curves (LCs) of four high energy peaked blazars, PKS 0548−322, ON 231, 1ES 1426+428, and PKS 2155−304. These data comprise continuous LCs of 7.67–18.97 hr in length. We searched ...