LAUSR

This study was partially financially supported by a 2015 ESO DGDF grant. NK acknowledges financial support from IAC for a three-weeks visit to the institute. GB gratefully acknowledges support through a Marie- Curie action Intra European Fellowship, funded by the European Union Seventh Framework Program (FP7/2007-2013) under Grant agreement number PIEF-GA-2010-274151, as well as the financial support by the Spanish Ministry of Economy and Competitiveness (MINECO) under the Ramon y Cajal Programme (RYC-2012-11537). AC was supported by a fellowship from the Netherlands Research School for Astronomy (NOVA). This work made extensive use of the NASA Astrophysics Data System bibliographic services. This research used the facilities of the Canadian Astronomy Data Centre operated by the National Research Council of Canada with the support of the Canadian Space Agency.