| 研究課題/領域番号 |
22KF0069
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| 補助金の研究課題番号 |
21F21325 (2021-2022)
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 基金 (2023)
補助金 (2021-2022) |
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| 応募区分 | 外国 |
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| 審査区分 |
小区分16010:天文学関連
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| 研究機関 | 東京大学 |
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研究代表者 |
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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| 研究分担者 |
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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| 受入研究者 |
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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| 外国人特別研究員 |
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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| 研究期間 (年度) |
2023-03-08 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
2,100千円 (直接経費: 2,100千円)
2023年度: 500千円 (直接経費: 500千円)
2022年度: 800千円 (直接経費: 800千円)
2021年度: 800千円 (直接経費: 800千円)
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| キーワード | JWST / high-redshift galaxies / near-infrared / galaxy formation / gravitational waves |
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| 研究開始時の研究の概要 |
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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| 研究実績の概要 |
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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