Herschel spectroscopic observations of the compact obscured nucleus in Zw 049.057 N. Falstad, E. González-Alfonso, S. Aalto, P. P. van der Werf, J. Fischer, S. Veilleux, M. Meléndez, D. Farrah and H. A. Smith A&A, 580 (2015) A52 Published online: 30 July 2015 DOI: 10.1051/0004-6361/201526114