Fe I in the β Pictoris circumstellar gas disk - I. Physical properties of the neutral iron gasA. Vidal-Madjar, F. Kiefer, A. Lecavelier des Etangs, V. Bourrier, D. Ehrenreich, R. Ferlet, G. Hébrard and P. A. WilsonA&A, 607 (2017) A25DOI: https://doi.org/10.1051/0004-6361/201630040
