tokens: We would like to thank the referee for her/his useful comments. We also thank the SMA staff for their support, which makes these studies possible. The Submillimeter Array is a joint project between the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics and is funded by the Smithsonian Institution and the Academia Sinica. We thank Mauricio Tapia for thoughtful discussions about the origin of the infrared emission in NGC 6334 V. We thank Marco Padovani for his valuable support with ARTIST and Gilberto Zavala Pérez and Alfonso H. Ginori González for their computational support. C.J. acknowledges support from MINECO (Spain) grant No. BES-2012-052481. C.J. and J.M.G. acknowledge support from MICINN (Spain) grant No. AYA2014-57369-C3. J.M.G. also acknowledges the support from the MECD (Spain) PRX15/00435 travel grant. A.P. and M.Z.-A. acknowledge financial support from the UNAM-DGAPA-PAPIIT IA 102815 grant (Mexico). M.Z.-A. also acknowledges CONACyT for a postdoctoral fellowship at the University of Michigan. P.M.K. acknowledges support from the Ministry of Science and Technology in Taiwan through grant MoST 103-2119-M-001-009 and an Academia Sinica Career Development Award. J.B.-P. acknowledges UNAM-PAPIIT grant No. IN110816 and UNAM’s DGAPA-PASPA Sabbatical program. He also is indebted to the Alexander von Humboldt Stiftung for its invaluable support. K.Q. acknowledges the support from National Natural Science Foundation of China (NSFC) through grants NSFC 11473011 and NSFC 11590781.
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