Formation of planetary systems by pebble accretion and migration: growth of gas giants Bertram Bitsch, Andre Izidoro, Anders Johansen, Sean N. Raymond, Alessandro Morbidelli, Michiel Lambrechts and Seth A. Jacobson A&A, 623 (2019) A88 Published online: 11 March 2019 DOI: 10.1051/0004-6361/201834489