Understanding formation and properties of gravitational waves events from galactic nuclei

Research Project

Project/Area Number	21K13914
Research Category	Grant-in-Aid for Early-Career Scientists
Allocation Type	Multi-year Fund
Review Section	Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research Institution	The University of Tokyo
Principal Investigator	Trani Alessandro 東京大学, 大学院総合文化研究科, 特任研究員 (20881543)
Project Period (FY)	2021-04-01 – 2024-03-31
Project Status	Granted (Fiscal Year 2021)
Budget Amount *help	¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000) Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords	Black hole physics / Gravitational waves / Galactic nuclei / Stellar dynamics
Outline of Research at the Start	This project aims at characterizing the properties of gravitational waves (GWs) originating from compact object binaries residing in galactic nuclei. The astrophysical origin of gravitational wave sources is still unknown. Nuclear star clusters around a central massive black hole (BH) are expected to be abundant in stellar BH remnants and BH binaries. In this project I will develop an innovative hybrid Monte-Carlo/N-body model able to follow the evolution of binaries in galactic nuclei in order to provide a complete understanding of the evolution of GW progenitors in galactic nuclei.