Forbidden oxygen lines at various nucleocentric distances in comets A. Decock, E. Jehin, P. Rousselot, D. Hutsemékers, J. Manfroid, S. Raghuram, A. Bhardwaj and B. Hubert A&A, 573 (2015) A1 Published online: 08 December 2014 DOI: 10.1051/0004-6361/201424403