Development of a new technology spectrograph and connection of the distance ladder of AGN
| Project/Area Number |
16H02162
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
峰崎 岳夫 東京大学, 大学院理学系研究科(理学部), 准教授 (60292835)
柳澤 顕史 国立天文台, 光赤外研究部, 助教 (90311183)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥46,410,000 (Direct Cost: ¥35,700,000、Indirect Cost: ¥10,710,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2016: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
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| Keywords | 光学赤外線天文学 / 分光器 / クェーサー |
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| Outline of Final Research Achievements |
We designed a new near-infrared spectrograph for the 3.8m Seimei telescope built by Kyoto University in Okayama. The design is based on a non-conventional concept, and its development was started with a budget of about quarter for the usual near-infrared spectrograph. In the end, due to lack of budget, the spectrograph was completed up to about 70 to 80%, but new knowledge was obtained regarding : the fabrication of a large cryostat by electron beam welding, the production and inspection method of a large-curvature aspherical mirror, the low-cost tilt sensors and actuators for cooling vacuum use, and reduction software for images acquired by a multi-fiber spectrograph. Development of the spectrograph will be continued using other budgets.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究で開発が行われた分光器は、従来利用されてきた回転対称な反射鏡とは異なり、対称な軸を持たない特殊な形状の鏡を６枚用いたものである。これにより、従来の方式に対し半分の枚数の鏡で目標性能が達成できるため、特に個々の光学素子の価格が高額になる大型の装置に対しては、コストダウンと反射面数の減少による効率の増加が見込まれる。また、量産品を分解・再組立てして冷却真空用に用いる方法は、動作の信頼度は落ちるが必要なモーター数が多い場合には劇的に製作コストを抑えることが可能である。
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Report
(5 results)
Research Products
(22 results)
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[Journal Article] Okayama Astrophysical Observatory Wide-Field Camera2019
Author(s)
Yanagisawa, K., Shimizu, Y., Okita, K., Kuroda, D., Tsutsui, H., Koyano, H., Izumiura, H., Yoshida, M., Ohta, K., Kawai, N., et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 71
Issue: 6
Pages: 118-118
DOI
Related Report
Peer Reviewed
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[Journal Article] Astronomical Distance Determination in the Space Age2018
Author(s)
Czerny Bozena、Beaton Rachael、Bejger Michal、Cackett Edward、Dall’Ora Massimo、Holanda R. F. L.、Jensen Joseph B.、Jha Saurabh W.、Lusso Elisabeta、Minezaki Takeo、Risaliti Guido、Salaris Maurizio、Toonen Silvia、Yoshii Yuzuru
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Journal Title
Space Science Reviews
Volume: 214
Issue: 1
Pages: 32-32
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Properties of the Interstellar Medium in Star-Forming Galaxies at z~1.4 Revealed with ALMA2016
Author(s)
Seko, A., Ohta, K., Yabe, K., Hatsukade, B., Akiyama, M., Iwamuro, F., Tamura, N., and Dalton, G.
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Journal Title
The Astrophysical Journal
Volume: 819
Issue: 1
Pages: 82-82
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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