| Project/Area Number |
22KF0069
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| Project/Area Number (Other) |
21F21325 (2021-2022)
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Multi-year Fund (2023)
Single-year Grants (2021-2022) |
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| Section | 外国 |
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| Review Section |
Basic Section 16010:Astronomy-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SILVERMAN John (2021, 2023) 東京大学, カブリ数物連携宇宙研究機構, 教授 (90573030)
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| Co-Investigator(Kenkyū-buntansha) |
YANG LILAN 東京大学, カブリ数物連携宇宙研究機構, 外国人特別研究員
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| Host Researcher |
SILVERMAN John (2022) 東京大学, カブリ数物連携宇宙研究機構, 教授 (90573030)
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| Foreign Research Fellow |
YANG LILAN 東京大学, カブリ数物連携宇宙研究機構, 外国人特別研究員
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| Project Period (FY) |
2023-03-08 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2023: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2022: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2021: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | JWST / high-redshift galaxies / near-infrared / galaxy formation / gravitational waves |
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| Outline of Research at the Start |
We are furthering our understanding of the morphological properties of galaxies as a function of wavelength and cosmic time. With JWST, we are observing high redshift galaxies at rest-frame optical wavelengths with exceptional resolution. Secondly, we are investigating the relation between galaxy structure and stellar mass of the brightest cluster galaxies in the Hyper Suprime-Cam Subaru Strategic Program to better understand their growth and impact of their environments.
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| Outline of Annual Research Achievements |
Using the JWST programs GLASS and COSMOS-WEB, the morphological characteristics of high redshift galaxies were investigated, particularly the relationship between stellar mass, star-formation rate, and UV slope. Dr. Yang compared their properties as a function of redshift and wavelength. The galaxies are observed to have a wide diversity of morphologies, with many exhibiting structures different from those seen in lower-redshift galaxies. From these studies, the potential of JWST is being realized to unveil unprecedented details of galaxy formation even in the distant universe. Dr. Yang further completed a study of the sizes of bright cluster galaxies using the Hyper Suprime-Cam Subaru Strategic Survey. The results show remarkable consistency in their structure as a function of redshift.
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