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H2CO distribution and formation in the TW Hya disk
Karin I. Oberg, Viviana V. Guzman, Christopher J. Merchantz +8
H2CO is one of the most readily detected organic molecules in protoplanetary disks. Yet its distribution and dominant formation pathway(s) remain largely unconstrained. To address…
An ALMA survey of DCN/HCN and DCO/HCO in protoplanetary disks
Jane Huang, Karin I. Oberg, Chunhua Qi +7
The deuterium enrichment of molecules is sensitive to their formation environment. Constraining patterns of deuterium chemistry in protoplanetary disks is therefore useful for prob…
Nitrogen Fractionation in Protoplanetary Disks from the H13CN/HC15N Ratio
V. V. Guzmán, K. I. Öberg, J. Huang +2
Nitrogen fractionation is commonly used to assess the thermal history of Solar System volatiles. With ALMA it is for the first time possible to directly measure 14N/15N ratios in c…