Multi-wavelength observations and modelling of a quiescent cloud LDN1512 Mika Saajasto, Mika Juvela, Charlène Lefèvre, Laurent Pagani and Nathalie Ysard A&A, 647 (2021) A109 Published online: 17 March 2021 DOI: 10.1051/0004-6361/202038401