Very deep images of the innermost regions of the β Pictoris debris disc at L′ J. Milli, A.-M. Lagrange, D. Mawet, O. Absil, J.-C. Augereau, D. Mouillet, A. Boccaletti, J. H. Girard and G. Chauvin A&A, 566 (2014) A91 Published online: 19 June 2014 DOI: 10.1051/0004-6361/201323130