ner_tags: B-Person O B-Organization O B-Organization O O O B-Person O O O O O B-Location O B-Organization B-Grant I-Grant I-Grant O O B-Organization B-Grant I-Grant I-Grant O B-Person O O O B-Organization B-Grant I-Grant I-Grant O B-Grant O O B-Organization B-Grant I-Grant I-Grant O B-Person O B-Person I-Person O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B-Organization I-Organization I-Organization B-Organization B-Organization O O O O O O O B-Location O B-Organization B-Grant I-Grant O O O B-Organization B-Person O O O O O O O O B-Organization I-Organization I-Organization I-Organization I-Organization I-Organization I-Organization B-Organization I-Organization I-Organization O O O O O O O
tokens: MVdV acknowledges CNPq / Twas for financial support. EMdGDP acknowledges partial support from the Brazilian agencies FAPESP (grant no. 2013/10559-5 ) and CNPq (grant no. 300083/94-7 ). GK acknowledges support from FAPESP (grants no. 2013/04073-2 and 2013/18815-0 ) and PNPD/CAPES (grant no. 1475088 ). MVdV thanks Reinaldo Santos-Lima for fruitful discussions on different topics addressed in this paper. The authors also acknowledge the anonymous referee for a careful review. This work has made use of the computing facilities of the Laboratory of Astroinformatics (IAG/USP, NAT/Unicsul), whose purchase was made possible by the Brazilian agency FAPESP (grant 2009/54006-4 ) and the INCT-A. MVdV is grateful for the great hospitality of the Instituto de Astronomia, Geofísica e Ciências Atmosféricas (São Paulo University), where part of this work was developed.