The role of radiation feedback in driving galactic outflows

2015 Fiscal Year Final Research Report

• Project/Area Number: 24740112
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: Hokkaido University
• Principal Investigator: Okamoto Takashi 北海道大学, 理学(系)研究科(研究院), 助教 (50541893)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 宇宙物理 / 銀河形成 / 数値シミュレーション / 輻射輸送

Outline of Final Research Achievements

For studying roles of radiation from young massive stars in driving galactic outflows, we have developed a new radiation transfer code that can efficiently run on massively parallel computers including a cluster of GPGPUs. We have also implemented a phenomenological model of radiation pressure on dust grains in cosmological simulations of galaxy formation. We find that, without this process, evolution of a stellar mass-gas metallicity relation of star-forming galaxies cannot be explained.

Free Research Field

理論天文学