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tokens: LAZ, AP, RG, and LFR acknowledge the financial support from DGAPA, UNAM, and CONACyT, México. This paper makes use of ALMA data: ADS/JAO.ALMA#2011.0.00419.S. ALMA is a partnership of ESO (representing its member states), NSF (USA), and NINS (Japan), together with NRC (Canada), and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO, and NAOJ. GG acknowledges support from CONICYT project PFB-06.