Application of the MST clustering to the high energy gamma-ray sky. III   - New detections of gamma-ray emission from blazars
  We present the results of a photon cluster search in the gamma-ray sky observed by the Fermi Large Area Telescope, using the new Pass 8 dataset, at energies higher than 10 GeV. By means of the Minimum Spanning Tree (MST) algorithm, we found 25 clusters associated with catalogued blazars not previously known as gamma-ray emitters. The properties of these sources are discussed. 
R. Campana, E. Massaro, E. Bernieri
astro-ph.HE