Barnard 1b CO, NH_2_D and SO images

The extremely young Class 0 object B1b-S and the first hydrostatic core (FSHC) candidate, B1b-N, provide a unique opportunity to study the chemical changes produced in the...极年轻的0级原恒星天体（Class 0 object）B1b-S与第一静力学核心（first hydrostatic core，FSHC）候选体B1b-N，为研究……中产生的化学变化提供了独一无二的契机。