2010 Fiscal Year Final Research Report
Resolving structure of cosmic dark matter based on extremely high-resolution radio observations
| Project/Area Number |
20340039
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Tohoku University |
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Principal Investigator |
CHIBA Masashi 東北大学, 大学院・理学研究科, 教授 (50217246)
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| Co-Investigator(Kenkyū-buntansha) |
INOUE Kaiki 近畿大学, 理工学部, 准教授 (70388495)
MINEZAKI Takeo 東京大学, 大学院・理学系研究科, 助教 (60292835)
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| Co-Investigator(Renkei-kenkyūsha) |
SAITO Masao 国立天文台, ALMA推進室, 助教 (90353424)
KAMENO Seiji 鹿児島大学, 理学部, 准教授 (20270449)
SUGAI Hajime 京都大学, 大学院・理学研究科, 助教 (50291422)
SUMI Takahiro 名古屋大学, 太陽地球環境研究所, 助教 (30432214)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 暗黒物質 / 電波観測 / 重力レンズ |
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| Research Abstract |
Hierarchical clustering models of cold dark matter (CDM)predict that a galaxy-sized dark halo with total mass being comparable to the Milky Way contains thousands of substructures (so-called CDM subhalos)having each mass of million to billion solar masses. To directly identify such substructures and set limits on standard model of dark matter, we have developed the new method based on radio observation of gravitationally lensed objects using ALMA, TMT and other large-aperture telescopes with extremely high angular resolution.
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[Journal Article] Structure and Population of the Andromeda Stellar Halo from a Subaru/Supreme-Cam Survey2010
Author(s)
Tanaka, M., Chiba, M., Komiyama, Y., Guhathakurta, P., Kalirai, J. S., Iye, M.
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Journal Title
アストロフィジカルジャーナル
Volume: 708
Pages: 1168-1203
Peer Reviewed
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[Journal Article] 6Li/7Li estimates for metal-poor stars2009
Author(s)
Garcia, P. A. E., Aoki, W., Inoue, S., Ryan, S. G., Suzuki, T. K., Chiba, M
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Journal Title
ヨーロピアンジャーナル
Volume: 504
Pages: 213-223
Peer Reviewed
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