• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

A study of systematic uncertainties on ultrahigh-energy cosmic ray observation using new fluorescence detector

Research Project

Project/Area Number 18H01225
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionKyoto University

Principal Investigator

Fujii Toshihiro  京都大学, 白眉センター, 特定助教 (50706877)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2018: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Keywords宇宙線 / 空気シャワー / 大気蛍光 / エネルギースペクトル / 質量組成 / FAST / テレスコープアレイ実験 / ピエールオージェ観測所 / 宇宙線観測 / 極高エネルギー / 大気蛍光望遠鏡 / FAST実験
Outline of Final Research Achievements

For the purpose of a development for the next-generation observatories of ultrahigh-energy cosmic rays, we developed new economical fluorescence telescope consisting of a segment mirror in 1.6 m diameter and four large photomultiplier tubes in 20 cm diameter. To investigate the systematic uncertainties between the Telescope Array Experiment and the Pierre Auger Observatory, which are currently operating in the northern and southern hemispheres, respectively, we installed the identical fluorescence telescope at both experiment sites and started the steady operation to detect ultrahigh-energy cosmic rays by a remote control from Japan. Observations of extremely high-energy cosmic rays were started by remote control from Japan. In the operation thus far, we have accomplished the expected signal detection from the ultrahigh -energy cosmic rays by the installed telescopes.

Academic Significance and Societal Importance of the Research Achievements

極高エネルギー宇宙線は宇宙空間で最も高いエネルギーを持つ粒子であり、その起源は宇宙空間における極限物理現象が深く関連していると推測されているが、全く明らかになっていない。本研究では、極高エネルギー宇宙線への感度を10倍に増やすため、新型の大気蛍光望遠鏡を開発している。その望遠鏡は極高エネルギー宇宙線観測に特化し、必要最低限な機能のみを実装した低コスト型の望遠鏡となっている。本研究は、この低コスト型の望遠鏡を現在南北半球それぞれで稼働中の宇宙線観測装置に設置することで、双方の実験の系統誤差を検証する計画である。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (17 results)

All 2020 2018 Other

All Int'l Joint Research (3 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Remarks (2 results) Funded Workshop (1 results)

  • [Int'l Joint Research] 光学研究所(チェコ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] シカゴ大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] アデレード大学(オーストラリア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] An automated all-sky atmospheric monitoring camera for a next-generation ultrahigh-energy cosmic-ray observatory2020

    • Author(s)
      Chytka L.、Mandat D.、Albury J.、Bellido J.A.、Farmerh J.、Fujii T.、Hamal P.、Horvath P.、Hrabovsky M.、Kvita J.、Malacari M.、Mastrodicasa M.、Matthews J.N.、Michal S.、Ni X.、Nozka L.、Palatka M.、Pech M.、Privitera P.、Schovanek P.、Salamida F.、Smida R.、Thomas S.B.、Travnicek P.、Vacula M.
    • Journal Title

      Journal of Instrumentation

      Volume: 15 Issue: 10 Pages: T10009-T10009

    • DOI

      10.1088/1748-0221/15/10/t10009

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The first full-scale prototypes of the fluorescence detector array of single-pixel telescopes2020

    • Author(s)
      Malacari M.、Farmer J.、Fujii T.、Albury J.、Bellido J.A.、Chytka L.、Hamal P.、Horvath P.、Hrabovsk? M.、Mandat D.、Matthews J.N.、Nozka L.、Palatka M.、Pech M.、Privitera P.、Schov?nek P.、?m?da R.、Thomas S.B.、Travnicek P.
    • Journal Title

      Astroparticle Physics

      Volume: 119 Pages: 102430-102430

    • DOI

      10.1016/j.astropartphys.2020.102430

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment2020

    • Author(s)
      Abbasi R. U. et al. (Telescope Array collboration)
    • Journal Title

      The Astrophysical Journal

      Volume: 898 Issue: 2 Pages: L28-L28

    • DOI

      10.3847/2041-8213/aba0bc

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The full-scale prototype for the Fluorescence detector Array of Single-pixel Telescopes2018

    • Author(s)
      T. Fujii et al
    • Journal Title

      JPS Conf. Proc.

      Volume: 19 Pages: 011047-011047

    • DOI

      10.7566/jpscp.19.011047

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Overview and Summary: Connecting high-energy astroparticle physics for origins of cosmic rays and future perspectives2020

    • Author(s)
      Toshihiro Fujii
    • Organizer
      YITP Workshop: Connecting high-energy astroparticle physics for origins of cosmic rays and future perspectives
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Extragalactic cosmic ray observations2020

    • Author(s)
      Toshihiro Fujii
    • Organizer
      International Research Network Extragalactic Astrophysics and Cosmology (NECO) Online Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] FAST実験7:新型大気蛍光望遠鏡による極高エネルギー宇宙線観測報告2018

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会第74回年次大会, 九州大学
    • Related Report
      2018 Annual Research Report
  • [Presentation] A next-generation ground array for the detection of ultrahigh-energy cosmic rays: the Fluorescence detector Array of Single-pixel Telescopes (FAST)2018

    • Author(s)
      T. Fujii
    • Organizer
      Ultra High Energy Cosmic Ray 2018, Paris, France,
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] FAST実験6:新型大気蛍光望遠鏡による観測報告とピエールオージェ観測所への設置計画2018

    • Author(s)
      藤井俊博
    • Organizer
      日本物理学会2018年秋季大会, 信州大学
    • Related Report
      2018 Annual Research Report
  • [Presentation] A next-generation ground array for ultrahigh-energy cosmic rays: Fluorescence detector Array of Single-pixel Telescopes (FAST)2018

    • Author(s)
      T. Fujii
    • Organizer
      TeV Particle Astrophysics 2018, Berlin, Germany
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Future ground arrays for ultrahigh-energy cosmic rays: recent updates and perspectives2018

    • Author(s)
      T. Fujii
    • Organizer
      20th International Symposium on Very High Energy Cosmic Ray Interactions, Nagoya, Japan,
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] FAST Project

    • URL

      https://www.fast-project.org

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Remarks] FAST実験「極高エネルギー宇宙線天文学」への挑戦

    • URL

      https://www.fast-project.org

    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] YITP Workshop: Connecting high-energy astroparticle physics for origins of cosmic rays and future perspectives2020

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi