146 citations · 179 across the 2 of their papers we have counts for
6 papers
Phosphorous chemistry in the shocked region L1157 B1
Takuhiro Aota, Yuri Aikawa
We study the evolution of phosphorous-bearing species in one-dimensional C-shock models. We find that the abundances of P-bearing species depend sensitively on the elemental abunda…
From Prestellar to Protostellar Cores II. Time Dependence and Deuterium Fractionation
Yuri Aikawa, Valentine Wakelam, Franck Hersant +2
We investigate the molecular evolution and D/H abundance ratios that develop as star formation proceeds from a dense-cloud core to a protostellar core, by solving a gas-grain react…
Chemical Processes in Protoplanetary Disks II. On the importance of photochemistry and X-ray ionization
Catherine Walsh, Hideko Nomura, T. J. Millar +1
We investigate the impact of photochemistry and X-ray ionization on the molecular composition of, and ionization fraction in, a protoplanetary disk surrounding a typical T Tauri st…
AKARI observations of ice absorption bands towards edge-on YSOs
Y. Aikawa, D. Kamuro, I. Sakon +9
To investigate the composition and evolution of circumstellar ice around low-mass YSOs, we observed ice absorption bands in the near infrared (NIR) towards eight YSOs ranging from…
Molecular Hydrogen Emission from Protoplanetary Disks II. Effects of X-ray Irradiation and Dust Evolution
H. Nomura, Y. Aikawa, M. Tsujimoto +2
Detailed models for the density and temperature profiles of gas and dust in protoplanetary disks are constructed by taking into account X-ray and ultraviolet (UV) irradiation from…
Warm Molecular Layers in Protoplanetary Disks
Y. Aikawa, G. J. van Zadelhoff, E. F. van Dishoeck +1
We have investigated molecular distributions in protoplanetary disks, adopting a disk model with a temperature gradient in the vertical direction. The model produces sufficiently h…