@inproceedings{oai:jaxa.repo.nii.ac.jp:00004963, author = {吉川, 耕司 and Akahori, Takuya and Yoshikawa, Kohji}, book = {宇宙航空研究開発機構特別資料:, JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H}, month = {Feb}, note = {The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan, We summarize results of our N-body + hydrodynamic simulations of merging galaxy clusters. In the simulations, assumptions of both the ionization equilibrium and the electron-ion temperature equipartition of the intracluster medium are relaxed, and it is found that the significant non-equilibrium ionization state and the two-temperature structure exist at shock layers in merging galaxy clusters. Line emissions of Fe are significantly altered from that in the ionization equilibrium state at the layers. Understanding such non-equilibrium effects is of crucial importance to constrain physical properties of the intracluster medium such as the temperature and metallicity, and essential to find shock waves in outskirts of the clusters., Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science, 資料番号: AA0064574031, レポート番号: JAXA-SP-09-008E}, pages = {90--91}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {Hydrodynamic Simulations of Merging Galaxy Clusters: Non-Equilibrium Ionization State and Two-Temperature Structure}, volume = {JAXA-SP-09-008E}, year = {2010} }