2023 Fiscal Year Final Research Report
| Project/Area Number |
20K03996
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
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| Research Institution | Ibaraki University |
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Principal Investigator |
Tatsuo Yoshida 茨城大学, 理工学研究科(理学野), 教授 (60241741)
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | 解像型大気チェレンコフ望遠鏡 / 超高エネルギーガンマ線天体物理学 |
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| Outline of Final Research Achievements |
In order to observe the activity of ultra-high energy cosmic-ray source candidates in the low-energy gamma-ray band from 20 GeV to 1 TeV, stereoscopic observations with the Large-Sized Telescopes (LST-2-4) of the Cherenkov Telescope Array (CTA) are highly anticipated. It is essential to evaluate the performance of the elements of the LSTs' optical system for capturing gamma-rays in this energy band. In this research, the performance evaluations of the main elements of the optical system;specifically, the spherical mirror segments that constitute the primary parabolic mirror of the LSTs and the hexagonal light concentrators of the focal-plane camera, have been carried out.
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| Free Research Field |
ガンマ線天文学
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| Academic Significance and Societal Importance of the Research Achievements |
LST-2-4号基の光学系の性能評価の結果、CTA北サイトのLST-2-4号基のステレオ観測開始後、高エネルギーニュートリノ天文学、重力波天文学、他の波長の電磁波天文観測と連携し、20 GeVから1 TeV程度のエネルギー帯の超高エネルギー宇宙線源候補天体フレア時のマルチメッセンジャー観測で十分な貢献を果たすことが期待できることがわかった
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