Controlling the emission profile of an H2 discharge lamp to simulate interstellar radiation fieldsN. F. W. Ligterink, D. M. Paardekooper, K. -J. Chuang, M. L. Both, G. A. Cruz-Diaz, J. H. van Helden and H. LinnartzA&A, 584 (2015) A56DOI: https://doi.org/10.1051/0004-6361/201526930