| 研究課題/領域番号 |
23K22497
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| 補助金の研究課題番号 |
22H01226 (2022-2023)
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| 研究種目 |
基盤研究(B)
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| 配分区分 | 基金 (2024)
補助金 (2022-2023) |
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| 応募区分 | 一般 |
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| 審査区分 |
小区分15020:素粒子、原子核、宇宙線および宇宙物理に関連する実験
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| 研究機関 | 東京大学 |
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研究代表者 |
Mazin Daniel 東京大学, 宇宙線研究所, 特任教授 (90747990)
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| 研究分担者 |
Vovk Ievgen 東京大学, 宇宙線研究所, 助教 (20899405)
手嶋 政廣 東京大学, 宇宙線研究所, グローバルフェロー (40197778)
齋藤 隆之 東京大学, 宇宙線研究所, 助教 (60713419)
高橋 光成 名古屋大学, 宇宙地球環境研究所, 特任助教 (60838960)
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| 研究期間 (年度) |
2022-04-01 – 2025-03-31
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| 研究課題ステータス |
交付 (2024年度)
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| 配分額 *注記 |
15,600千円 (直接経費: 12,000千円、間接経費: 3,600千円)
2024年度: 2,730千円 (直接経費: 2,100千円、間接経費: 630千円)
2023年度: 5,850千円 (直接経費: 4,500千円、間接経費: 1,350千円)
2022年度: 7,020千円 (直接経費: 5,400千円、間接経費: 1,620千円)
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| キーワード | Hubble constant / Cherenkov telescopes / Hardware stereo trigger / gamma-ray / Cherenkov / Hubble Constant / gamma-rays / hardware trigger / H0 constant / EBL / IACT / Trigger / gamma rays |
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| 研究開始時の研究の概要 |
We will take data on flaring AGNs and GRBs with the new trigger system. We will analyse joint CTA-LST and MAGIC data and derive constraints on the extragalactic background light as well as the Hubble Constant H0. We also look into a new technology of Hollow Core Fibers to improve the trigger system.
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| 研究実績の概要 |
The stereo hardware trigger has been installed and validated.
In particular, we purchased and deployed a new trigger cable between the LST camera and MAGIC counting house shortening the trigger travel time by about 500ns compared to the previous installation. This is important to deliver the LST trigger in time to build a coincidence trigger with the MAGIC telescopes because MAGIC telescopes have a relatively short analog buffer length. We also installed a new firmware in MAGIC trigger system and developed the software code to control and monitor zenith and azimuth dependent trigger delays between LST and MAGIC telescopes. The trigger timing has been adjusted and several test data sets has been taken in hardware stereo mode.
In the same time work on methodology to derive constraints on the density of the Extragalactic Background Light has been done, which can be directly used to constrain the Hubble constant H0.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The progress of the project is within the schedule. The hardware part of the project has been designed, deployed and commissioned. The evaluation of the performance is ongoing.
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| 今後の研究の推進方策 |
In FY2023 we will study the actual performance and take data
on various gamma-ray sources. We expect several trips to La Palma to polish the performance of the trigger and make it to a standard trigger system between LST1 and MAGIC telescopes. We also expect to take first data with hardware stereo trigger on extragalactic sources to derive preliminary limits on the H0 constant.
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