Study on breakup of liquid ligaments in hypersonic cross flow using laser sheet imaging and infrared light extinction spectroscopy T. Regert, I. Horvath, J.-M. Buchlin, D. Masutti, O. Chazot, M. R. Vetrano, C. Lapebie and C. Le Gallic Published online: 20 June 2017 DOI: 10.1051/eucass/2016090229