ner_tags: O O O O O O O O O B-Person O O O O B-Organization I-Organization O O O B-Grant I-Grant O O O O O B-Observatory I-Observatory I-Observatory I-Observatory I-Observatory O B-Organization I-Organization I-Organization O O O O O O O O O O O B-Person O B-Person O O O O O B-Organization B-Grant B-Person O O O B-Organization O B-Grant O O O B-Grant I-Grant I-Grant B-Grant O O B-Organization B-Organization I-Organization I-Organization I-Organization I-Organization I-Organization B-Person O O O O B-Organization I-Organization I-Organization I-Organization I-Organization I-Organization B-Organization O O O O B-Grant O O B-Grant O O B-Organization O B-Grant O B-Grant O O B-Grant B-Person O O O O O B-Organization O B-Grant I-Grant O O O B-Grant B-Person O O O O O B-Location I-Location B-Grant I-Grant I-Grant I-Grant I-Grant I-Grant O O B-Grant I-Grant I-Grant I-Grant I-Grant I-Grant I-Grant
tokens: ACKNOWLEDGEMENTS We thank the anonymous referee for thoughtful comments. IM acknowledges support by the Deutsche Forschungsgemeinschaft under the grant MI 2009/1-1, as well as support by Observatoire de la Côte d’Azur and Université Côte d’Azur for a one-month visit in 2017, where this project was conceived. ARB and PdL acknowledge financial support from the ANR 14-CE33-014-01. CC acknowledges support from DFG Grant CH1188/2-1 and from the ChETEC COST Action (CA16117), supported by COST (European Cooperation in Science and Technology). VA acknowledges the supported by Fundação para a Ciência e Tecnologia (FCT) through national funds (ref. PTDC/FIS-AST/7073/2014 and ref. PTDC/FIS-AST/1526/2014) and by FEDER through COMPETE2020 (ref. POCI-01-0145-FEDER-016880 and ref. POCI-01-0145-FEDER-016886). VA also acknowledge the support from FCT through Investigador FCT contract of reference IF/00650/2015/CP1273/CT0001. GC acknowledges financial support from the European Union Horizon 2020 research and innovation programme under the Marie Marie Skłodowska-Curie grant agreement no. 664931.