Numerical Study on Diversity of Galaxies
| Project/Area Number |
26707007
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Astronomy
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| Research Institution | Kobe University (2018)
Tokyo Institute of Technology (2014-2017) |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 銀河形成 / 数値シミュレーション / 化学進化 / フィードバック |
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| Outline of Final Research Achievements |
I carried out galaxy formation simulations using a DISPH method, a efficient feedback models, and chemical evolution models. First, I studied the capability of DISPH for cosmological simulations, I applied DISPH to simulations of clusters of galaxies. DISPH can provide a reasonable result which is almost the same as those with other state-of-the-art numerical schemes. In order to integrate the latest results of stellar evolution to galaxy formation smoothly, I, then, developed an open-source software library, CELib, which handles everything regarding chemical evolution. Using CELIb, I studied the impacts of chemical evolution model on galaxy formation and origin of elements.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では銀河形成シミュレーションの精緻化をおこなった。特に化学進化について、将来の拡張性を持った形で精緻化した。多様な元素がどのように宇宙空間に広がってきたかの研究は銀河形成だけではなく、生命の起源などの研究にもつながる広範な応用が見込まれる。また、最新のモデルに基づく銀河形成シミュレーションの映像を作った。直感的に現在の最新の銀河形成過程を理解してもらえる素材になっていると考える。
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Report
(6 results)
Research Products
(31 results)
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[Presentation] A Density Independent SPH2014
Author(s)
Takayuki Saitoh & Junichiro Makino
Organizer
East Asian Numerical Astrophysical Meeting
Place of Presentation
KyungHee University/Korea
Year and Date
2014-09-16
Related Report
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