Kinematics of massive star ejecta in the Milky Way as traced by 26Al Karsten Kretschmer, Roland Diehl, Martin Krause, Andreas Burkert, Katharina Fierlinger, Ortwin Gerhard, Jochen Greiner and Wei Wang A&A, 559 (2013) A99 Published online: 19 November 2013 DOI: 10.1051/0004-6361/201322563