Three dynamically distinct stellar populations in the halo of M49 J. Hartke, M. Arnaboldi, O. Gerhard, A. Agnello, A. Longobardi, L. Coccato, C. Pulsoni, K. C. Freeman and M. Merrifield A&A, 616 (2018) A123 Published online: 29 August 2018 DOI: 10.1051/0004-6361/201832711