Study of the intra-cluster medium in galaxy clusters with a high resolution spectroscopy for investigating the chemical evolution in the universe

2014 Fiscal Year Final Research Report

• Project/Area Number: 25800112
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: Tokyo University of Science
• Principal Investigator: SATO Kosuke 東京理科大学, 理学部, 助教 (50453840)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: Ｘ線天文学 / 銀河団 / カロリメータ

Outline of Final Research Achievements

Because galaxy clusters are the largest objects in the universe, the properties in the intra-cluster medium give us important clues for investigating the dynamical and chemical evolutions in the universe. As a observational study, we studied the entropy profile, which is a good indicator of the thermal evolution of galaxy clusters, derived from the ICM temperature and density, with the Japan-US astronomical satellite "SUZAKU" and compared our results with that from the cosmological numerical simulations. As a experimental study, we developed a dielectric micro calorimeter on board the next generation astronomical satellite. I am also a core member of the ASTRO-H SXS team, and have been active in the SXS test.

Free Research Field

Ｘ線天文学