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Development of Millimetric Adaptive Optics

Research Project

Project/Area Number 20K20287
Project/Area Number (Other) 17H06206 (2017-2019)
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund (2020)
Single-year Grants (2017-2019)
Research Field Astronomy and related fields
Research InstitutionNagoya University

Principal Investigator

Tamura Yoichi  名古屋大学, 理学研究科, 准教授 (10608764)

Co-Investigator(Kenkyū-buntansha) 川邊 良平  国立天文台, 科学研究部, 教授 (10195141)
Project Period (FY) 2017-06-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥25,610,000 (Direct Cost: ¥19,700,000、Indirect Cost: ¥5,910,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥21,060,000 (Direct Cost: ¥16,200,000、Indirect Cost: ¥4,860,000)
Keywords電波天文学 / 補償光学 / ミリ波 / 電波望遠鏡 / 計測工学
Outline of Research at the Start

本研究課題では、既存あるいは将来の地上ミリ波サブミリ波望遠鏡に搭載し、風負荷・熱変形等による鏡面精度の低下を実時間で補償する光学システム「ミリ波補償光学」の創出を目指した波面計測システムの基礎研究を実施する。研究計画では、電波天文学のネイティブな波面計測技術である電波干渉法を用いた波面計測法をあらたに考案し、その実証機の開発を推進する。開発した波面計測システムを野辺山45m望遠鏡に搭載して、40ミクロン(rms)の精度で実時間の波面測定が可能なことを実証する。この技術の確立により、世界中の電波望遠鏡の性能の向上に道筋をつける。

Outline of Final Research Achievements

In the construction of radio telescopes, it is important to increase the diameter and frequency of antennas while maintaining the accuracy of the mirror surface in order to open up new fields of astronomy. In this study, we conducted basic research on "millimeteric adaptive optics", an optical system that can be installed on existing or future ground-based submillimeter-wave telescopes to compensate for the loss of mirror surface accuracy due to wind loading, thermal deformation, and gravitational deformation in real time. We proposed a wavefront sensor using aperture-plane interferometry, which is an application of a native wavefront sensing technique in radio astronomy, and developed a low-frequency (20 GHz) and small-element (5-element) wavefront sensor, which was installed on the Nobeyama 45-m telescope. As a result, real-time wavefront measurement with an accuracy of 8 μm r.m.s. was demonstrated.

Academic Significance and Societal Importance of the Research Achievements

ミリ波・サブミリ波は、あらゆる天体の材料であるガスや塵や、高温のプラズマの検出に長けている。ミリ波補償光学の実現は、将来の大型サブミリ波望遠鏡の実現に直結し、引いては世界最大のサブミリ波干渉計ALMAと同等の集光力を持ちながら、視野を10^6倍に、分光帯域幅を10^2倍に拡大する、電波天文学の悲願ともいえる宇宙探査性能の獲得につながると期待される。これは、惑星科学、星形成論、星間化学、宇宙マイクロ波背景放射や銀河・銀河団の探索とそれを用いた宇宙論研究など、波及効果が高い。本研究成果は、既存・将来のミリ波・サブミリ波望遠鏡の大型化・高周波化に分け隔てなく応用し、性能を向上させることが可能である。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (41 results)

All 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (35 results) (of which Int'l Joint Research: 9 results,  Invited: 13 results) Remarks (2 results)

  • [Int'l Joint Research] INAF(イタリア)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Wavefront sensor for millimeter/submillimeter-wave adaptive optics based on aperture-plane interferometry2020

    • Author(s)
      Yoichi Tamura, Ryohei Kawabe, Yuhei Fukasaku, Kimihiro Kimura, Tetsutaro Ueda, A. Taniguchi, N. Okada, H. Ogawa, I. Hashimoto, T. Minamidani, N. Kawaguchi, N. Kuno, Y. Togami, M. Hagimoto, S. Nakano, K. Matsuda, S. Okumura, T. Nakamura, M. Kurita, T. Takekoshi, T. Oshima, T. Onishi, K. Kohno
    • Journal Title

      Proceedings of the SPIE

      Volume: 11445 Pages: 263-263

    • DOI

      10.1117/12.2561885

    • Related Report
      2020 Research-status Report 2019 Annual Research Report
  • [Journal Article] The Atacama Large Aperture Submillimeter Telescope (AtLAST)2020

    • Author(s)
      Klaassen, Pamela D.; Mroczkowski, Tony K.; Cicone, Claudia; Hatziminaoglou, Evanthia; Sartori, Sabrina; De Breuck, Carlos; Bryan, Sean; Dicker, Simon R.; Duran, Carlos; Groppi, Chris; Kaercher, Hans; Kawabe, Ryohei; Kohno, Kotaro; Geach, James
    • Journal Title

      Proceedings of the SPIE

      Volume: 11445

    • DOI

      10.1117/12.2561315

    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Wind- and Operation-Induced Vibration Measurements of the Main Reflector of the Nobeyama 45 m Radio Telescope2020

    • Author(s)
      Masakatsu Chiba; Ikumi Hashimoto; Nozomi Okada; Hideo Ogawa; Ryohei Kawabe; Tetsuhiro Minamidani; Yoichi Tamura; Kimihiro Kimura
    • Journal Title

      Journal of Vibration Engineering & Technologies

      Volume: n/a Issue: 6 Pages: 909-923

    • DOI

      10.1007/s42417-020-00202-9

    • NAID

      120006960129

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 大型サブミリ波望遠鏡LST計画とミリ波補償光学の開発2022

    • Author(s)
      田村陽一
    • Organizer
      国立天文台先端技術センター談話会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] The Large Submillimeter Telescope (LST計画)2022

    • Author(s)
      田村陽一
    • Organizer
      2021年度宇宙電波懇談会シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ミリ波補償光学の開発 VII. アンテナ鏡面-受信機間の超過経路長の測定による鏡面変形の評価2022

    • Author(s)
      中野覚矢
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミリ波補償光学 (MAO) の実現に向けた波面センサーの開発と実証2022

    • Author(s)
      中野覚矢
    • Organizer
      宇宙電波懇談会シンポジウム2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] The Large Submillimeter Telescope (LST)2021

    • Author(s)
      Yoichi Tamura
    • Organizer
      East Asia Submillimeter-wave Workshop 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Millimeter-wave adaptive optics for future large-aperture submillimeter telescopes2021

    • Author(s)
      田村陽一
    • Organizer
      国立天文台野辺山宇宙電波観測所談話会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 次世代大口径サブミリ波望遠鏡 Large Submillimeter Telescope (LST) ってなに?2021

    • Author(s)
      田村陽一
    • Organizer
      電波天文・干渉計サマースクール 2021
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Large Submillimeter Telescope (LST): 7. 望遠鏡仕様2021

    • Author(s)
      田村陽一
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Millimeter-wave Adaptive Optics for Future Large Submillimeter Telescopes2021

    • Author(s)
      Yoichi Tamura
    • Organizer
      Joint ALMA Observatory APG Advanced Technical Talk
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] サブミリ波単一鏡の革新2021

    • Author(s)
      田村陽一
    • Organizer
      サブミリ波単一鏡の革新で挑む,天文学の未解決問題
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Development of Millimetric Adaptive Optics (MAO): Characterization of Wavefront Deformation with the Nobeyama 45 m Radio Telescope2021

    • Author(s)
      中野覚矢
    • Organizer
      ALMA/45m/ASTE Users Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミリ波補償光学の開発: アンテナ鏡面-受信機間の超過経路長の測定による鏡面変形の評価2021

    • Author(s)
      中野覚矢
    • Organizer
      第22回ミリ波サブミリ波受信機ワークショップ
    • Related Report
      2021 Annual Research Report
  • [Presentation] Millimetric Adaptive Optics: Current Status2021

    • Author(s)
      Yoichi Tamura
    • Organizer
      ALMA/45m/ASTE Users Meeting
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 次世代大口径サブミリ波望遠鏡 Large Submillimeter Telescope (LST) ってなに?2021

    • Author(s)
      田村陽一
    • Organizer
      JCMT Workshop「北半球で口径最大&焦点面装置とっても充実サブミリ波単一鏡 JCMT を使ってみよう & 使い倒そう!!」
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] ミリ波補償光学の開発 V. 野辺山45mミリ波望遠鏡における開口面干渉法波面センサの実証実験2021

    • Author(s)
      田村陽一
    • Organizer
      日本天文学会2021年春季年会
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
  • [Presentation] Future Large Submillimeter Telescopes: Concept, Progress, and Developments2021

    • Author(s)
      Ryohei Kawabe
    • Organizer
      Joint ALMA Observatory Technical Talk
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Large Submillimeter Telescope (LST) 計画2021

    • Author(s)
      川邊 良平
    • Organizer
      国立天文台研究集会「(サブ)ミリ波単一鏡の革新で挑む, 天文学の未解決問題」
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Invited
  • [Presentation] 次世代大口径サブミリ波望遠鏡 Large Submillimeter Telescope (LST) ってなに?2021

    • Author(s)
      田村陽一
    • Organizer
      JCMT Workshop「北半球で口径最大&焦点面装置とっても充実サブミリ波単一鏡 JCMT を使ってみよう & 使い倒そう!!」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Wavefront sensor for millimeter/submillimeter-wave adaptive optics based on aperture-plane interferometry2020

    • Author(s)
      Yoichi Tamura
    • Organizer
      SPIE Astronomical Telescopes and Instrumentation
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Millimetric Adaptive Optics: Current Status2020

    • Author(s)
      田村陽一
    • Organizer
      野辺山サイエンスワークショップ
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
  • [Presentation] Large Submillimeter Telescope2020

    • Author(s)
      田村陽一
    • Organizer
      宇宙電波懇談会シンポジウム2020年度 「極限性能で切り開く電波天文学」
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Invited
  • [Presentation] LST検討状況とB4R/LMTによる科学評価観測2020

    • Author(s)
      川邊 良平
    • Organizer
      Nobeyama Science Workshop 2020
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Invited
  • [Presentation] ミリ波補償光学の開発 III. 開口干渉型波面センサの概要2020

    • Author(s)
      田村陽一
    • Organizer
      日本天文学会2020年春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ミリ波補償光学の開発 IV. 波面センサ用送信機サブシステムの開発2020

    • Author(s)
      深作悠平
    • Organizer
      日本天文学会2020年春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Large Submillimeter Telescope (LST): 4) Recent Progress2019

    • Author(s)
      川邊良平
    • Organizer
      日本天文学会2019年春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 野辺山45 m電波望遠鏡における主鏡の変形計測(2)2019

    • Author(s)
      橋本育実
    • Organizer
      日本天文学会2019年春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Millimetric Adaptive Optics: The Concept and Current Activities2019

    • Author(s)
      田村陽一
    • Organizer
      International Workshop on Submillimeter Astronomy (南京, 中国)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ミリ波補償光学の開発 I. プロジェクトの概要2018

    • Author(s)
      田村陽一
    • Organizer
      日本天文学会2018年春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ミリ波補償光学の開発 II. 波面センサ用GPU相関器2018

    • Author(s)
      上田哲太朗
    • Organizer
      日本天文学会2018年春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ミリ波補償光学の創成2018

    • Author(s)
      田村陽一
    • Organizer
      宇宙電波懇談会シンポジウムFY2017
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Millimetric Adaptive Optics2018

    • Author(s)
      田村陽一
    • Organizer
      台湾中央研究院天文及天体物理学研究所 special seminar (台北, 台湾)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 野辺山45 m電波望遠鏡における主鏡の変形測定2018

    • Author(s)
      橋本育実
    • Organizer
      日本天文学会2018年秋季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] New 50-m-class single dish telescope: Large Submillimeter Telescope (LST)2018

    • Author(s)
      川邊良平
    • Organizer
      A workshop to discuss science/technical aspects of the Atacama Large-Aperture Submm/mm Telescope (AtLAST)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Correlator for Millimetric Adaptive Optics2017

    • Author(s)
      上田哲太朗
    • Organizer
      ALMA/NRO/ASTEユーザーズミーティング
    • Related Report
      2017 Annual Research Report
  • [Presentation] Millimetric Adaptive Optics: Development of Microwave Wavefront Sensor2017

    • Author(s)
      田村陽一
    • Organizer
      Nobeyama/ASTE Single Dish Science Workshop (長野, 日本)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Remarks] Large Submillimeter Telescope

    • URL

      https://www.lstobservatory.org/

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Annual Research Report 2018 Annual Research Report 2017 Annual Research Report
  • [Remarks] Millimetric Adaptive Optics (MAO)

    • URL

      https://www.a.phys.nagoya-u.ac.jp/~ytamura/wiki/doku.php?id=research:mao

    • Related Report
      2020 Research-status Report 2019 Annual Research Report 2018 Annual Research Report

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Published: 2017-07-21   Modified: 2024-03-26  

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