Predicting the formation of stars, black holes, and gravitational-wave signals with young galaxy clusters
| Project/Area Number |
21K13911
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
ATA METIN 東京大学, カブリ数物連携宇宙研究機構, 客員准科学研究員 (60836229)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | Large-scale structures / Cosmological Simulations / Gravitational Waves / Balck holes / High redshift galaxies / Gravitational waves / Binary black holes / Constrained simulations / Young galaxy clusters |
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| Outline of Research at the Start |
As a first step I will run constrained simulations of young galaxy clusters of which I reconstructed the initial conditions in a previous work. The idea is to first use dark matter simulations to show that we can predict the further evolution of these clusters. Once this first project is successfully finished, we will go ahead and run hydrodynamical simulations. These simulations will incorporate star formation models that we will use to predict the formation of binary black holes and gravitational wave. With this work we can improve the physics of star formation by comparing to observations.
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| Outline of Annual Research Achievements |
I have made significant progress in my research on the interplay of cosmological large-scale structure and gravitational wave sources. I shifted the focus to constrain the gravitational wave background with large-scale cosmological simulations. This is due to the fact that the gravitational wave background in the nanohertz regime is dominated by the mergers of supermassive blackholes. The original plan to utilise blackhole mergers in the LIGO-VIRGO-KARGA frequency band turned out to be impossible to resolve with our current state of N-body simulations. Therefore, we shifted the focus on the most massive blackholes we can resolve in simulations.
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Report
(3 results)
Research Products
(9 results)
