Solar wind dynamics around a comet - A 2D semi-analytical kinetic model E. Behar, B. Tabone, M. Saillenfest, P. Henri, J. Deca, J. Lindkvist, M. Holmström and H. Nilsson A&A, 620 (2018) A35 Published online: 27 November 2018 DOI: 10.1051/0004-6361/201832736