36 citations · 158 across the 7 of their papers we have counts for
9 papers · 1 filter
Surface Diffusion of Carbon Atoms as a Driver of Interstellar Organic Chemistry
Masashi Tsuge, Germán Molpeceres, Yuri Aikawa +1
Many interstellar complex organic molecules (COMs) are believed to be produced on the surfaces of icy grains at low temperatures. Atomic carbon is considered responsible for the sk…
Direct Determination of the Activation Energy for Diffusion of OH Radicals on Water Ice
A. Miyazaki, M. Tsuge, H. Hidaka +2
Using a combination of photostimulated desorption and resonance-enhanced multiphoton ionization methods, the behaviors of OH radicals on the surface of interstellar ice analog was…
Penetration of Non-energetic Hydrogen Atoms into Amorphous Solid Water and their Reaction with Embedded Benzene and Naphthalene
Masashi Tsuge, Akira Kouchi, Naoki Watanabe
Chemical processes on the surface of icy grains play an important role in the chemical evolution in molecular clouds. In particular, reactions involving non-energetic hydrogen atom…
Measurements of Ortho-to-para Nuclear Spin Conversion of H2 on Low-temperature Carbonaceous Grain Analogues: Diamond-like Carbon and Graphite
Masashi Tsuge, Akira Kouchi, Naoki Watanabe
Hydrogen molecules have two nuclear spin isomers: ortho-H2 and para-H2. The ortho-to-para ratio (OPR) is known to affect chemical evolution as well as gas dynamics in space. Theref…
Transmission Electron Microscopy Study of the Morphology of Ices Composed of H2O, CO2, and CO on Refractory Grains
Akira Kouchi, Masashi Tsuge, Tetsuya Hama +15
It has been implicitly assumed that ices on grains in molecular clouds and proto planetary disks are formed by homogeneous layers regardless of their composition or crystallinity.…
Behavior of Hydroxyl Radicals on Water Ice at Low Temperatures
Masashi Tsuge, Naoki Watanabe
Because chemical reactions on/in cosmic ice dust grains covered by amorphous solid water (ASW) play important roles in generating a variety of molecules, many experimental and theo…