Kinematics and dynamics of the luminous infrared galaxy pair NGC 5257/58 (Arp 240) I. Fuentes-Carrera, M. Rosado, P. Amram, E. Laurikainen, H. Salo, J. A. Gómez-López, H. O. Castañeda, A. Bernal and C. Balkowski A&A, 621 (2019) A25 Published online: 21 December 2018 DOI: 10.1051/0004-6361/201834159