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Study of Gamma-Ray Bursts with Imaging Atmospheric Cherenkov Telescopes

Research Project

Project/Area Number 21K20368
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0203:Particle-, nuclear-, astro-physics, and related fields
Research InstitutionHiroshima University

Principal Investigator

Suda Yusuke  広島大学, 先進理工系科学研究科(理), 助教 (70910321)

Project Period (FY) 2021-08-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsガンマ線バースト / 残光 / シンクロトロン自己コンプトン放射 / 超高エネルギーガンマ線 / 大気チェレンコフ望遠鏡 / MAGIC / CTA / LST / 高エネルギーガンマ線
Outline of Research at the Start

本研究の目的は、ガンマ線バーストの新しい観測手段として確立した大気チェレンコフ望遠鏡を用い、ガンマ線放射機構の解明に迫ることである。近年、MAGIC望遠鏡がガンマ線バーストからテラ電子ボルトに達する高エネルギーガンマ線を初検出したことを皮切りに残光の新たな物理が見えはじめ、今後はさらに観測事実を積み上げる必要がある。本研究では、MAGICで新たに観測したガンマ線バーストのデータを詳細に解析し、残光でのガンマ線放射機構を探求する。また、次世代大気チェレンコフ望遠鏡群CTAの大口径望遠鏡の初号基によるガンマ線バースト初検出に向けたデータ解析やMAGICとの共同観測のための解析手法も開発する。

Outline of Final Research Achievements

We have studied gamma-ray bursts (GRBs) observed by the MAGIC telescopes. A dedicated low-energy analysis was performed on the GRB 201216C data observed by MAGIC. We found that the observed multi-wavelength data, including sub-TeV data, can be naturally explained by a synchrotron self-Compton emission mechanism, and we published a paper on this finding. The MAGIC data analysis of GRB 201015A, in which MAGIC observed a hint of gamma-ray emission, was completed, and a paper is in preparation. To further improve sensitivity, we established an analysis pipeline for joint observations with MAGIC and the Large-Sized Telescope prototype (LST-1) for the Cherenkov Telescope Array Observatory. It was found that the joint observations have the capability to detect sources that are 30% (40%) weaker compared to MAGIC (LST-1) mono observations. We published a paper reporting the performance of the joint observations.

Academic Significance and Societal Importance of the Research Achievements

ガンマ線バーストの研究は2019年のMAGICによるTeVガンマ線放射の発見により新たな局面を迎えたが、TeV帯域でガンマ線バーストの検出に成功した例は数例しかないため、その放射機構については未解明な点が多い。そのため本成果により新たなサンプルが加えられた意義は大きい。また、低エネルギー側に強いMAGICの性能を活かしたGRB 201216Cの検出成功は、その後継ともいえるLSTのGRB観測に大いに期待できる成果である。MAGICとLST-1の同時解析の確立は、これを用いた今後の高感度観測はもちろん、CTA時代における複眼観測に向けたパスファインダーの役割を果たす上で重要な成果である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (26 results)

All 2023 2022 2021 Other

All Int'l Joint Research (15 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] MPI for Physics(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] IFAE(スペイン)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] INAF/INFN/U. Trieste(イタリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] U. Zagreb(クロアチア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] U. Lodz(ポーランド)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] MPI for Physics(ドイツ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] IFAE(スペイン)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] INAF/INFN/U. Trieste(イタリア)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] U. Zagreb(クロアチア)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] U. Lodz(ポーランド)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] MPI for Physics(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] IFAE(スペイン)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] INAF/INFN/U. Trieste(イタリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] U. Zagreb(クロアチア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] U. Lodz(ポーランド)

    • Related Report
      2021 Research-status Report
  • [Journal Article] MAGIC detection of GRB 201216C at z= 1.12023

    • Author(s)
      H. Abe et al.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 527 Issue: 3 Pages: 5856-5867

    • DOI

      10.1093/mnras/stad2958

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Performance of the joint LST-1 and MAGIC observations evaluated with Crab Nebula data2023

    • Author(s)
      Abe H.、Abe K.、Abe S.、et al.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 680 Pages: A66-A66

    • DOI

      10.1051/0004-6361/202346927

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Performance of the joint observations with CTA LST-1 and MAGIC2023

    • Author(s)
      Y. Suda, A. Berti, F. Di Pierro, Y. Ohtani, J. Sitarek, E. Visentin on behalf of the CTA-LST Project and the MAGIC Collaboration
    • Organizer
      XVIII International Conference on Topics in Astroparticle and Underground Physics 2023 (TAUP2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observation of sub-TeV gamma-ray emission from GRB 201216C at redshift 1.12023

    • Author(s)
      Y. Suda, A. Berti, S. Fukami, S. Loporchio, L. Nava, K. Noda, K. Asano, Z. Bosnjak, F. Longo on behalf of the MAGIC Collaboration, A. Gomboc, N. Jordana-Mitjans, A. Melandri, C. Mundell, M. Shrestha, and I. Steele
    • Organizer
      TeV Particle Astrophysics 2023 (TeVPA2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CTA-LST初号基とMAGICによるTeVガンマ線同時観測のための解析手法の開発2023

    • Author(s)
      須田祐介、今澤遼、大谷恵生ら、他 CTA LST project、MAGIC Collaboration
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Recent highlights of very-high-energy gamma-ray observations by the MAGIC telescopes2023

    • Author(s)
      Yusuke Suda on behalf of the MAGIC Collaboration
    • Organizer
      International Conference on the Physics of the Two Infinities
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] CTA 報告 192: CTA 大口径望遠鏡初号機とMAGIC 望遠鏡の同時イベント解析手法の研究 (2)2022

    • Author(s)
      大谷恵生、阿部正太郎、阿部日向、稲田知大、今澤遼、岩村由樹、大石理子、岡知彦、奥村曉、折戸玲子、片桐秀明、櫛田淳子、窪秀利、郡司修一、小林志鳳、齋藤隆之、櫻井駿介、須田祐介ら 他 CTA LST プロジェクト、MAGIC コラボレーション
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] MAGIC observations of gamma-ray bursts2021

    • Author(s)
      Yusuke Suda, on behalf of the MAGIC Collaboration
    • Organizer
      TeV Particle Astrophysics 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] MAGIC 報告 80: GRB 201015AとGRB 201216Cの観測2021

    • Author(s)
      須田祐介 他 MAGIC Collaboration
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] MAGIC 望遠鏡によるGRB 201015AとGRB 201216Cの観測2021

    • Author(s)
      寺内健太、窪秀利、野崎誠也、岡知彦、浅野勝晃、深見哲志、Daniela Hadasch、稲田知大、小林志凰、Daniel Mazin、野田浩司、大谷恵生、斎藤隆之、櫻井駿介、Marcel Strzys、高橋光成、武石隆治、手嶋政廣、Ievgen Vovk、櫛田淳子、西嶋恭司、須田祐介、The MAGIC Collaboration
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] CTA 報告 184: CTA 大口径望遠鏡初号機とMAGIC 望遠鏡の同時イベント解析手法の研究2021

    • Author(s)
      大谷恵生、阿部正太郎、阿部日向、稲田知大、今澤遼、岩村由樹、大石理子、岡知彦、岡崎奈緒、奥村曉、折戸玲子、片桐秀明、櫛田淳子、窪秀利、郡司修一、小林志鳳、齋藤隆之、櫻井駿介、須田祐介ら 他 CTA LST プロジェクト
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Research-status Report

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Published: 2021-10-22   Modified: 2025-01-30  

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