ner_tags: O O O O B-Person I-Person O O O O O O O O O B-Person O B-Person O O O O O B-Organization I-Organization B-Organization I-Organization I-Organization I-Organization I-Organization B-Organization O O B-Grant I-Grant B-Grant I-Grant O B-Grant I-Grant O O O B-Organization I-Organization I-Organization O O B-Organization I-Organization I-Organization O O B-Grant B-Person O O O O O B-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization O O O O O O B-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization O O O O O O O O O O O O O B-Person B-Person B-Person O B-Person O O O O O B-Organization I-Organization B-Organization I-Organization I-Organization I-Organization I-Organization B-Organization O O B-Grant I-Grant O O B-Location I-Location O O O B-Organization I-Organization O O B-Grant B-Person O O O B-Organization B-Grant I-Grant I-Grant I-Grant B-Person O O O O O B-Organization I-Organization B-Organization I-Organization I-Organization I-Organization I-Organization B-Organization O O B-Grant I-Grant B-Grant I-Grant O B-Grant I-Grant I-Grant O O O B-Organization I-Organization I-Organization O O B-Grant I-Grant I-Grant B-Person O O O O B-Fellowship I-Fellowship O O B-Location B-Organization I-Organization I-Organization I-Organization I-Organization B-Organization B-Organization O O O O B-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization O B-Organization O B-Grant
tokens: We thank the referee, Tony Moffat, for his useful comments that helped improve this paper. J.M.A. and A.S. acknowledge support from [a] the Spanish Government Ministerio de Economía y Competitividad (MINECO) through grants AYA2010-15 081, AYA2010-17 631, and AYA2013-40 611-P and [b] the Consejería de Educación of the Junta de Andalucía through grant P08-TIC-4075. J.M.A. was also supported by the George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy and he is grateful to the Department of Physics and Astronomy at Texas AM University for their hospitality during some of the time this work was carried out. I.N., A.M., J.A., and J.L. acknowledge support from [a] the Spanish Government Ministerio de Econoía y Competitividad (MINECO) through grant AYA2012-39 364-C02-01/02, [b] the European Union, and [c] the Generalitat Valenciana through grant ACOMP/2014/129. R.H.B. acknowledges support from FONDECYT Project 1 140 076. S.S.-D. acknowledges funding by [a] the Spanish Government Ministerio de Economía y Competitividad (MINECO) through grants AYA2010-21 697-C05-04, AYA2012-39 364-C02-01, and Severo Ochoa SEV-2011-0187 and [b] the Canary Islands Government under grant PID2 010 119. J.S.-B. acknowledges support by the JAE-PreDoc program of the Spanish Consejo Superior de Investigaciones Científicas (CSIC). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.