15/01/25 - Data access statement: "The public accessibility of the data used in this work is listed below. The NH3 VLA data are available under project number 3A-309. The GAS NH3 data are available at: https://dataverse.harvard.edu/dataverse/GAS_DR1. The CO-subtracted JGBS 850 μm data are available at: https://doi.org/10.11570/18.0005 The HGBS data are available at: http://gouldbelt-herschel.cea.fr/archives." Janik Karoly is our author - he was a student here and has left, and his e-mail address here will not work for much longer.