| Project/Area Number |
24244031
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | The University of Tokyo (2013-2016)
National Astronomical Observatory of Japan (2012) |
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Principal Investigator |
Ando Masaki 東京大学, 大学院理学系研究科(理学部), 准教授 (90313197)
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| Co-Investigator(Kenkyū-buntansha) |
山元 一広 東京大学, 宇宙線研究所, 助教 (00401290)
麻生 洋一 国立天文台, 重力波プロジェクト推進室, 准教授 (10568174)
高橋 竜太郎 国立天文台, 重力波プロジェクト推進室, 助教 (60270451)
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| Research Collaborator |
SHODA Ayaka
KOMORI Kentaro
KUWAHARA Yuya
NAKAMURA Koji
ARITOMI Naoki
SHOMODA Tomofumi
MICHIMURA Yuta
Donatella Fiorucci
EDA Kazunari
TEJIMA Kodai
ITOH Yousuke
|
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥44,330,000 (Direct Cost: ¥34,100,000、Indirect Cost: ¥10,230,000)
Fiscal Year 2015: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2014: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2013: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Fiscal Year 2012: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | 重力波 / ねじれ振り子 / TOBA / 中間質量ブラックホール |
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| Outline of Final Research Achievements |
We developed a Torsion-bar Antenna, which has good sensitivity to gravitational waves at low frequency around 0.1-1Hz. We improved the sensitivity and carried out observation runs. The obtained data was analyzed for search of gravitational wave signals. As a result, we found no gravitational wave signal, and set updated upper limits on stochastic background gravitational waves, inspiral of intermediate-mass black-hole binaries. We also developed a new suspension configuration to have all-sky sensitivity, active vibration isolation system, inductive coil actuator, monolithic optical bench, reduction scheme of coupling from displacement degree of freedom.
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