1. IRAP, Université de Toulouse, CNRS, UPS, CNES, Toulouse, France
2. Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, NL-1098 XH Amsterdam, the Netherlands
3. Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, FI-21500 Piikkiö, Finland
4. Aalto University Metsähovi Radio Observatory, PO Box 13000, FI-00076 Aalto, Finland
5. New York University Abu Dhabi, PO Box 129188, Abu Dhabi, UAE
6. Laboratoire AIM (CEA/IRFU - CNRS/INSU - Universitë Paris Diderot), CEA DRF/IRFU/DAp, F-91191 Gif-sur-Yvette, France
7. Station de Radioastronomie de Nançay, Observatoire de Paris, PSL Research University, CNRS, Univ. Orléans, F- Nançay, France
8. Université Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France