Probing the formation of first galaxies under radiative feedback

2016 Fiscal Year Final Research Report

• Project/Area Number: 15H06022
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Tohoku University
• Principal Investigator: Yajima Hidenobu 東北大学, 学際科学フロンティア研究所, 助教 (10756357)
• Project Period (FY): 2015-08-28 – 2017-03-31
• Keywords: 銀河形成 / 巨大ブラックホール / 輻射輸送 / 星間ダスト / 数値シミュレーション

Outline of Final Research Achievements

We have performed large-scale numerical simulations and multi-wavelength radiation transfer calculations. Our simulations show evolution from first galaxies to massive galaxies, and their observational properties. Large amounts of gas accrete onto galaxies, and make massive galactic disks in an over-dense region. The massive galaxies become bright at infrared band due to dust thermal emission in the galactic disk. We also derive the conditions for formations of Population III star clusters and massive black holes in first galaxies by using analytical models.

Free Research Field

理論天文学