Carbonaceous nano-dust emission in proto-planetary discs: the aliphatic-aromatic components T. Boutéraon, E. Habart, N. Ysard, A. P. Jones, E. Dartois and T. Pino A&A, 623 (2019) A135 Published online: 20 March 2019 DOI: 10.1051/0004-6361/201834016