Evolution of star clusters: from star fromation to gravitational wave emission

• Project/Area Number: 19F19317
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 外国
• Review Section: Basic Section 16010:Astronomy-related
• Research Institution: The University of Tokyo
• Host Researcher: 藤井 通子 東京大学, 大学院理学系研究科(理学部), 准教授 (90722330)
• Foreign Research Fellow: WANG LONG 東京大学, 理学(系)研究科(研究院), 外国人特別研究員
• Project Period (FY): 2019-11-08 – 2022-03-31
• Project Status: Granted (Fiscal Year 2020)
• Budget Amount: ¥1,900,000 (Direct Cost: ¥1,900,000); Fiscal Year 2020: ¥900,000 (Direct Cost: ¥900,000); Fiscal Year 2019: ¥600,000 (Direct Cost: ¥600,000)

Outline of Research at the Start

Gravitational waves (GW) detection is a new channel of observing black hole (BH) and neutron star (NS), which are difficult to detect by using traditional telescopes. Thus, GW provides a unique way to study BHs/NSs. In this research, a series of large N-body simulations of star clusters, where GW progenitors can efficiently form, will be carried out to study correlations between star formation, stellar dynamics and properties of GW progenitors. Using the result, we make predictions of the characteristics of GW events, such as the mass of the progenitors, event rate and more detailed features.