Torsion-type gravitational wave antenna for low-frequency observation

• Project/Area Number: 16H03972
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: Ando Masaki 東京大学, 大学院理学系研究科(理学部), 准教授 (90313197)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2017: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 重力波 / ねじれ振り子 / 低温懸架 / 熱雑音 / 能動防振 / レーザー干渉計 / 低温 / 宇宙物理学 / ブラックホール / TOBA / 宇宙物理

Outline of Final Research Achievements

We developed a low-freqnecy gravitational wave antenna using torsion pendulum. We obtained some scientific results in a cryogenic operation of torsion pendulum, active isolation system, new-type of laser interferometric angular sensor, and Q-measurement of torsion pendulum

Academic Significance and Societal Importance of the Research Achievements

低周波数での重力波観測によって、連星合体前の情報やより重たいブラックホールの観測が可能になる。本研究はその重力波観測に向けた重要な一歩となるものである。

Research Products

• [Int'l Joint Research] Austrelia National University(オーストラリア)
• [Int'l Joint Research] APC Paris(フランス)
• [Int'l Joint Research] APC, Paris(フランス)
• [Int'l Joint Research] Australia National University(オーストラリア)
• [Journal Article] Attonewton-meter torque sensing with a macroscopic optomechanical torsion pendulum (2020)
  • Author(s): Komori Kentaro, Enomoto Yutaro, Ooi Ching Pin, Miyazaki Yuki, Matsumoto Nobuyuki, Sudhir Vivishek, Michimura Yuta, Ando Masaki
  • Journal Title: Physical Review A Volume: 101 Issue: 1 Pages: 011802-011802
  • DOI: 10.1103/physreva.101.011802
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] DANCE: Dark matter Axion search with riNg Cavity Experiment (2020)
  • Author(s): Michimura Yuta, Oshima Yuka, Watanabe Taihei, Kawasaki Takuya, Takeda Hiroki, Ando Masaki, Nagano Koji, Obata Ippei, Fujita Tomohiro
  • Journal Title: Journal of Physics: Conference Series Volume: 1468 Issue: 1 Pages: 012032-012032
  • DOI: 10.1088/1742-6596/1468/1/012032
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] An arm length stabilization system for KAGRA and future gravitational-wave detectors (2020)
  • Author(s): Akutsu T, et al. (KAGRA Collaboration)
  • Journal Title: Classical and Quantum Gravity Volume: 37 Issue: 3 Pages: 035004-035004
  • DOI: 10.1088/1361-6382/ab5c95
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Prospects for gravitational-wave polarization tests from compact binary mergers with future ground-based detectors (2019)
  • Author(s): Takeda Hiroki、Nishizawa Atsushi、Nagano Koji、Michimura Yuta、Komori Kentaro、Ando Masaki、Hayama Kazuhiro
  • Journal Title: Physical Review D Volume: 100 Issue: 4 Pages: 042001-042013
  • DOI: 10.1103/physrevd.100.042001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] KAGRA: 2.5 generation interferometric gravitational wave detector (2019)
  • Author(s): KAGRA collaboration
  • Journal Title: Nature Astronomy Volume: 3 Issue: 1 Pages: 35-40
  • DOI: 10.1038/s41550-018-0658-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Earthquake-induced prompt gravity signals identified in dense array data in Japan (2019)
  • Author(s): Kimura M, Kame N, Watada S, Ohtani M, Araya A, Imanishi Y, Ando M, Kunugi T
  • Journal Title: Earth, Planets and Space Volume: 71:27 Issue: 1 Pages: 1-12
  • DOI: 10.1186/s40623-019-1006-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Nonlinear vibration transfer in torsion pendulums (2019)
  • Author(s): Shimoda Tomofumi, Ando Masaki
  • Journal Title: Classical and Quantum Gravity Volume: 36 Issue: 12 Pages: 125001-125001
  • DOI: 10.1088/1361-6382/ab2162
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA (2019)
  • Author(s): KAGRA Collaboration
  • Journal Title: Classical and Quantum Gravity Volume: 36 Issue: 9 Pages: 95015-95015
  • DOI: 10.1088/1361-6382/ab0fcb
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA (2019)
  • Author(s): Akutsu T, et al. (KAGRA Collaboration)
  • Journal Title: Classical and Quantum Gravity Volume: 36 Issue: 16 Pages: 165008-165008
  • DOI: 10.1088/1361-6382/ab28a9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Space Gravitational Wave Antenna DECIGO and B-DECIGO (2018)
  • Author(s): Seiji Kawamura et al.
  • Journal Title: International Journal of Modern Physics D Volume: 27 Issue: 12 Pages: 1845001-1845001
  • DOI: 10.1142/s0218271818450013
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Seismic cross-coupling noise in torsion pendulums (2018)
  • Author(s): T. Shimoda, Naoki Aritomi, Ayaka Shoda, Yuta Michimura and Masaki Ando
  • Journal Title: Phys. Rev. D Volume: 97 Issue: 10 Pages: 104003-104003
  • DOI: 10.1103/physrevd.97.104003
  • Peer Reviewed
• [Journal Article] Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA (2018)
  • Author(s): B. P. Abbott et al.
  • Journal Title: Living Reviews in Relativity Volume: 21 Issue: 1 Pages: 1-57
  • DOI: 10.1007/s41114-018-0012-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Direct approach for the fluctuation-dissipation theorem under nonequilibrium steady-state conditions (2018)
  • Author(s): Kentaro Komori, Yutaro Enomoto, Hiroki Takeda, Yuta Michimura, Kentaro Somiya, Masaki Ando, Stefan W. Ballmer
  • Journal Title: Phys. Rev. D Volume: 97 Issue: 10 Pages: 102001-102001
  • DOI: 10.1103/physrevd.97.102001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Particle swarm optimization of the sensitivity of a cryogenic gravitational wave detector (2018)
  • Author(s): Yuta Michimura, Kentaro Komori, Atsushi Nishizawa, Hiroki Takeda, Koji Nagano, Yutaro Enomoto, Kazuhiro Hayama, Kentaro Somiya, Masaki Ando
  • Journal Title: Phys. Rev. D Volume: 97 Issue: 12 Pages: 122003-122003
  • DOI: 10.1103/physrevd.97.122003
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Polarization test of gravitational waves from compact binary coalescences (2018)
  • Author(s): Hiroki Takeda, Atsushi Nishizawa, Yuta Michimura, Koji Nagano, Kentaro Komori, Masaki Ando, Kazuhiro Hayama
  • Journal Title: Phys. Rev. D Volume: 98 Issue: 2 Pages: 22008-22008
  • DOI: 10.1103/physrevd.98.022008
  • NAID: 130007735273
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] All-sky coherent search for continuous gravitational waves in 6-7 Hz band with a torsion-bar antenna (2016)
  • Author(s): Kazunari Eda, Ayaka Shoda, Yuya Kuwahara, Yousuke Itoh, Masaki Ando
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 1 Issue: 1 Pages: 1-8
  • DOI: 10.1093/ptep/ptv179
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] P re-DECIGO can get the smoking gun to decide the astrophysical or cosmological origin of GW150914-like binary black holes (2016)
  • Author(s): Nakamura, Takashi; Ando, Masaki; Kinugawa, Tomoya; et al.
  • Journal Title: PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS Volume: 9 Issue: 9 Pages: 930-930
  • DOI: 10.1093/ptep/ptw127
  • NAID: 120005973373
  • Peer Reviewed / Open Access
• [Journal Article] Search for a stochastic gravitational wave background at 1-5 Hz with a torsion bar (2016)
  • Author(s): Kuwahara, Yuya; Shoda, Ayaka; Eda, Kazunari; et al.
  • Journal Title: Physical Review D Volume: 94 Issue: 4 Pages: 42003-42003
  • DOI: 10.1103/physrevd.94.042003
  • Peer Reviewed / Open Access
• [Presentation] Space-borne Gravitational-Wave Antenna: B-DECIGO (2019)
  • Author(s): Masaki Ando
  • Organizer: GWPAW 2019
  • Int'l Joint Research
• [Presentation] Gravity-Gradient-Based Early Earthquake Alert (2019)
  • Author(s): Masaki Ando
  • Organizer: UK-Japan Workshop on Quantum Sensing and Metrology Research Workshop
  • Int'l Joint Research / Invited
• [Presentation] Science and Technology of B-DECIGO and DECIGO (2019)
  • Author(s): Masaki Ando
  • Organizer: TianQin Summer School on Gravitational Waves 2019
  • Int'l Joint Research / Invited
• [Presentation] Gravitational-wave observation - Recent results and prospects - (2019)
  • Author(s): Masaki Ando
  • Organizer: OMEG15
  • Int'l Joint Research / Invited
• [Presentation] B-DECIGO and DECIGO (2019)
  • Author(s): Masaki Ando
  • Organizer: The 6th KAGRA International Workshop
  • Int'l Joint Research / Invited
• [Presentation] Recent results of gravitational wave (2018)
  • Author(s): Masaki Ando
  • Organizer: Higgs Couplings 2018
  • Int'l Joint Research / Invited
• [Presentation] DECIGO : Gravitational-Wave Observation from Space (2018)
  • Author(s): Masaki Ando
  • Organizer: The 15th MG Meeting
  • Int'l Joint Research / Invited
• [Presentation] TOBA: Torsion-Bar Gravitational-Wave Antenna (2018)
  • Author(s): Masaki Ando
  • Organizer: The 15th MG Meeting
  • Int'l Joint Research / Invited
• [Presentation] 重力波天文学入門 (2017)
  • Author(s): Masaki Ando
  • Organizer: 第23回 ICEPPシンポジウム
  • Place of Presentation: 岳見山荘, 白馬 (長野県)
  • Year and Date: 2017-02-19
  • Invited
• [Presentation] 宇宙重力波望遠鏡 B-DECIGO (2017)
  • Author(s): 安東 正樹
  • Organizer: 第17回 宇宙科学シンポジウム
  • Place of Presentation: 宇宙科学研究所 (相模原, 神奈川県)
• [Presentation] Observation of Gravitational Waves (2017)
  • Author(s): Masaki Ando
  • Organizer: Physics in LHC and the Early Universe
  • Place of Presentation: The University of Tokyo (Tokyo)
  • Int'l Joint Research / Invited
• [Presentation] KAGRA : a Gravitational-Wave Antenna in Japan (2016)
  • Author(s): Masaki Ando
  • Organizer: Korean Physical Society Spring Meeting
  • Place of Presentation: Daejon Convention Center （Daejon, Korea）
  • Int'l Joint Research / Invited
• [Presentation] 重力波天文学の幕開けと将来 The First Direct Detection of Gravitational Wave (2016)
  • Author(s): Masaki Ando
  • Organizer: Space Science Colloquium
  • Place of Presentation: ISAS-JAXA (Sagamihara, Kanagawa)
  • Int'l Joint Research / Invited
• [Presentation] Space Gravitational-Wave Antenna: DECIGO and Pre-DECIGO (2016)
  • Author(s): Masaki Ando
  • Organizer: GWPAW2016
  • Place of Presentation: Cape Cod, Massachusetts (USA)
  • Int'l Joint Research / Invited
• [Presentation] KAGRA : a Cryogenic Interferometric Gravitational-Wave Antenna (2016)
  • Author(s): Masaki Ando
  • Organizer: Gravitational Wave Astronomy with Present and Future Detectors
  • Place of Presentation: Yangpyeong （Korea）
  • Int'l Joint Research / Invited
• [Book] Advanced Interferometric Gravitational-wave Detectors: Essentials of Gravitational Wave Detectors / Advanced Ligo, Advanced Virgo and Beyond (2019)
  • Author(s): Ed: David Reitze, Peter Saulson
  • Total Pages: 700
  • Publisher: World Scientific Pub Co Inc
  • ISBN: 9789813146075
• [Book] 理科年表 重力波の初観測と重力波天文学の幕開け (2017)
  • Author(s): 国立天文台 編
  • Total Pages: 1104
  • Publisher: 丸善出版
• [Book] 重力波とはなにか (2016)
  • Author(s): 安東正樹
  • Total Pages: 317
  • Publisher: 講談社ブルーバックス
• [Remarks] 安東研究室
  • URL: http://granite.phys.s.u-tokyo.ac.jp/ja/