| Project/Area Number |
12F02322
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Research Field |
Astronomy
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| Research Institution | The University of Tokyo |
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Principal Investigator |
高田 昌広 (2012) 東京大学, カブリ数物連携宇宙研究機構, 教授
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| Co-Investigator(Kenkyū-buntansha) |
MORE Anupreeta 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (10753759)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2014: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 2013: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2012: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | useful for education / great public outreach / valuable for astronomers / Exciting / Satisfactory / million classifications / 50k people collaborating / 暗黒物質 / 重力レンズ / 銀河サーベイ |
|---|
| Outline of Annual Research Achievements |
We successfully conducted two lens searches in Space Warps (SW, spacewarps.org) in FY2013. I led the first SW lens search and analysed the results. I made comparisons between the performance of humans vs robots and we find a fairly large number of lens candidates which were missed by previous robotic searches. Our work is summarized and presented in Paper I- http://arxiv.org/abs/1504.06148 and Paper II - http://arxiv.org/abs/1504.05587 (to be submitted to MNRAS).
From the second lens search which was conducted live on BBC in FY2013, an intriguing lens candidate was discovered. We used several world class telescopes including Subaru (owned by Japan) to confirm that this truly a lens and studied the properties of the lensed galaxy such as the star-formation rate. I produced the lens mass model which calculates how magnified the lensed galaxy is in order to derive the true luminosity of the lensed galaxy and other such properties (http://arxiv.org/abs/1503.05824, MNRAS submitted).
We also enabled mass modelling of the lens candidates for the citizens (Kueng et al. 2015) and found that citizens produce fairly similar results compared to experts in this task. This is encouraging because assistance from citizens on mass modelling will become crucial as we embark upon the discovery of thousands of lens candidates.
The resources from SW have legacy value e.g. the simulated lens samples that we generate are useful for testing other lens finding algorithms as we did in Chan et al. (2014, http://arxiv.org/abs/1411.5398)
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| Research Progress Status |
26年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
26年度が最終年度であるため、記入しない。
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