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HH212, a nearby (400 pc) object in Orion, is a Class 0 protostellar systemwith a Keplerian disk and collimated bipolar SiO jets. Deuterated water, HDOand a deuterated complex molecule, methanol (CH2DOH) have been reported in thesource. Here, we report the HDCO (deuterated formaldehyde) line observationfrom ALMA data to probe the inner region of HH212. We compare HDCO line withother molecular lines to understand the possible chemistry and physics of thesource. The distribution of HDCO emission suggests it may be associated withthe base of the outflow. The emission also shows a rotation but it is notassociated with the Keplerian rotation of disk or the rotating infallingenvelope, rather it is associated with the outflow as previously seen in C 34S. From the possible deuterium fractionation, we speculate that the gas phaseformation of deuterated formaldehyde is active in the central hot region of thelow-mass protostar system, HH212.

Deuterated Formaldehyde in the low mass protostar HH212