The infant bow shock: a new frontier at a weak activity comet Herbert Gunell, Charlotte Goetz, Cyril Simon Wedlund, Jesper Lindkvist, Maria Hamrin, Hans Nilsson, Kristie Llera, Anders Eriksson and Mats Holmström A&A, 619 (2018) L2 Published online: 06 November 2018 DOI: 10.1051/0004-6361/201834225