Chemical segregation in the young protostars Barnard 1b-N and S: Evidence of pseudo-disk rotation in Barnard 1b-S⋆⋆⋆

We thank the Spanish MINECO for funding support from grants CSD2009-00038, AYA2012-32032, AYA2016-75066-C2-1/2-P, and ERC under ERC-2013-SyG, G. A. 610256 NANOCOSMOS. E.R. and M.G. thank the INSU/CNRS program PCMI for funding.