Constraining general relativity and the galaxy-halo connection by the redshift-space distortion in the BOSS galaxy
| Project/Area Number |
25887012
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SAITO SHUN 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (10704215)
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 宇宙大規模構造 / 宇宙論 / 銀河サーベイ / 赤方偏移歪み / ニュートリノ質量 |
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| Outline of Final Research Achievements |
We constrained general relativity at cosmological scales by making use of the redshift-space distortion over a wide range of scales in the three-dimensional clustering of galaxies observed in Baryon Oscillation Spectroscopic Survey (BOSS) in Sloan Digital Sky Survey III (SDSS-III, 2009-2014). We find no evidence of violation in general relativity and also derive a stringent constraint on neutrino masses. Through the research, we develop a way to predict the distribution of dark matter halos, and also develop a novel way to connect simulated dark matter halos with the observed BOSS galaxies.
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Report
(3 results)
Research Products
(28 results)
