Breakdown curves of CH2(+), CH3(+), and CH4(+) molecules - I. Construction and application to electron collisions and UV photodissociationT. IdBarkach, M. Chabot, K. Béroff, S. Della Negra, J. Lesrel, F. Geslin, A. Le Padellec, T. Mahajan and S. Díaz-TenderoA&A, 628 (2019) A75DOI: https://doi.org/10.1051/0004-6361/201935760