Ion irradiation of the Murchison meteorite: Visible to mid-infrared spectroscopic results C. Lantz, R. Brunetto, M. A. Barucci, E. Dartois, J. Duprat, C. Engrand, M. Godard, D. Ledu and E. Quirico A&A, 577 (2015) A41 Published online: 29 April 2015 DOI: 10.1051/0004-6361/201425398