Study of galactic evolutional tree using radiation-hydrodynamic simulation
| Project/Area Number |
25400222
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | University of Tsukuba |
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Principal Investigator |
MORI MASAO 筑波大学, 計算科学研究センター, 准教授 (10338585)
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| Research Collaborator |
Rich Michael
Miki Yohei
Ogiya Go
Igarashi Asuka
Kirihara Tadanobu
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| Project Period (FY) |
2013-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 銀河形成 / 計算科学 / 理論天文学 / 銀河形成論 |
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| Outline of Final Research Achievements |
In modern theoretical cosmology, the cold dark matter scenario has been successfully applied to reproduce the observed large-scale structure of the universe; this indicates that cold dark matter plays an essential role in galaxy formation. To understand the evolution of galaxies based on the cold dark matter scenario, we performed the numerical simulations that follow the evolution from the earliest stages of galaxy formation through the period of dynamical relaxation, at which point the resulting galaxy is in its final form. Our results nicely reproduce the observational characteristics in local galaxies.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では宇宙理論と計算科学、宇宙観測といった三つの研究分野を融合し、理論と観測の融合というキーワードを念頭に、銀河形成・進化モデルの構築に取り組んだ。特に、大規模な数値シミュレーションを駆使して構築した銀河形成・進化の理論モデルと、遠方の銀河候補天体及び近傍銀河の観測データとの詳細な比較を行い、多様な銀河宇宙を解読するための基礎的な研究を行った。
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Report
(7 results)
Research Products
(75 results)
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[Journal Article] Stellar Stream and Halo Structure in the Andromeda Galaxy from a Subaru/Hyper Suprime-Cam Survey2018
Author(s)
Komiyama, Yutaka; Chiba, Masashi; Tanaka, Mikito; Tanaka, Masayuki; Kirihara, Takanobu; Miki, Yohei; Mori, Masao; Lupton, Robert H.; Guhathakurta, Puragra; Kalirai, Jason S.; Gilbert, Karoline; Kirby, Evan; Lee, Myun Gyoon; Jang, In Sung; Sharma, Sanjib; Hayashi, Kohei
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Journal Title
The Astrophysical Journal
Volume: 853
Issue: 1
Pages: 29-51
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] ALMA Reveals Strong [CII] Emission in a Galaxy Embedded in a Giant Lyα Blob at z=3.12017
Author(s)
Umehata, H.; Matsuda, Y.; Tamura, Y.; Kohno, K.; Smail, I.; Ivison, R. J.; Steidel, C. C.; Chapman, S. C.; Geach, J. E.; Hayes, M.; Nagao, T.; Ao, Y.; Kawabe, Y.; Yun, M. S.; Hatsukade, B.; Kubo, M.; Kato, Y.; Saito, T.; Ikarashi, S.; Nakanishi, K.; Lee, M.; Izumi, T.; Mori, M.; Ouchi, M.
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Journal Title
The Astrophysical Journal
Volume: 834
Issue: 2
Pages: 16-22
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Multilateral Study of the Andromeda Giant Stream: Implications for the progenitor, its MBH, and the M31 halo2017
Author(s)
Kirihara, T., Miki, Y., Mori, M., Kawaguchi, T., Rich, R. M.
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Journal Title
Proceedings of the International Astronomical Union
Volume: 11
Issue: S321
Pages: 42-42
DOI
Related Report
Open Access / Int'l Joint Research
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