6 papers
Methanol Formation via the Radical-radical Reaction of OH and CH3 Radicals Undergoing Transient Diffusion on Ice at 10 to 60 K
Arisa Iguchi, Hiroshi Hidaka, Atsuki Ishibashi +3
Methanol (CH3OH) is thought to form on interstellar ice dust via successive hydrogenation reactions. The reaction between CH3 and OH radicals could also conceivably generate methan…
Hydrogenation of HOCO and formation of interstellar CO: A not so straightforward relation
Germán Molpeceres, Joan Enrique-Romero, Atsuki Ishibashi +5
Carbon dioxide (CO) is one of the most important interstellar molecules. While it is considered that it forms on the surface of interstellar dust grains, the exact contribution…
Evidence for Jet/Outflow Shocks Heating the Environment Around the Class I Protostellar Source Elias 29: FAUST XXI
Yoko Oya, Eri Saiga, Anna Miotello +1
We have observed the late Class I protostellar source Elias~29 at a spatial-resolution of 70~au with the Atacama~Large~Millimeter/submillimeter~Array (ALMA) as part of the FAUST La…
Hydrogenation of acetaldehyde on interstellar ice analogs reveals limited destruction
Germán Molpeceres, Thanh Nguyen, Yasuhiro Oba +1
We sought to determine which are the main hydrogenation paths of acetaldehyde (CH3CHO). As a partially unsaturated molecule, CH3CHO can have links with more hydrogenated species, l…
Chemical pathways of SO2 with hydrogen atoms on interstellar ice analogues
Thanh Nguyen, Yasuhiro Oba, W. M. C. Sameera +2
Sulfur dioxide (SO2) is a sulfur-containing molecule expected to exist as a solid in the interstellar medium (ISM). In this study, we performed laboratory experiments and computati…
Proposed importance of HOCO chemistry: Inefficient formation of CO from CO and OH reactions on ice dust
Atsuki Ishibashi, Germán Molpeceres, Hiroshi Hidaka +3
With the advent of JWST ice observations, dedicated studies on the formation reactions of detected molecules are becoming increasingly important. One of the most interesting molecu…