Extended X-ray emission in PKS 1718−649 T. Beuchert, A. Rodríguez-Ardila, V. A. Moss, R. Schulz, M. Kadler, J. Wilms, R. Angioni, J. R. Callingham, C. Gräfe, F. Krauß et al. (8 more) A&A, 612 (2018) L4 Published online: 30 April 2018 DOI: 10.1051/0004-6361/201833064