Opening a new frontier in time-domain astronomy with ultraviolet

• Project/Area Number: 17H04829
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Yatsu Yoichi 東京工業大学, 理学院, 准教授 (40447545)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000); Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2019: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000); Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2017: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
• Keywords: 紫外線 / 時間領域天文学 / 重力波 / 超新星ショックブレイクアウト / 超小型衛星 / 産学連携 / 重力崩壊型超新星 / ショックブレイクアウト / マルチメッセンジャー天文学 / 時間領域天文 / マルチメッセンジャー天文 / キューブサット / 超新星 / 突発天体

Outline of Final Research Achievements

The goal of this research is opening up the multi-messenger time-domain astronomy triggered by ultraviolet waveband. The possible targets are the gravitational wave events accompanied by electromagnetic emission and shock breakouts of core-collapse supernovae of high-mass stars in extremely early phase. To realize those science mission, we developed an ultraviolet telescope for satellites with a sensitivity of 250-300 nm. We also carried out a conceptual design of the satellite system and we proposed this project to ISAS/JAXA as a small-scale program for developing the flight model. We also applied this project to JAXA's Innovative satellite technology demonstration program to obtain the flight chance. The launch is scheduled in FY 2022 as we planned.

Academic Significance and Societal Importance of the Research Achievements

これまで、日本での超小型衛星開発は工学技術実証が基本であったが、本研究では初めてサイエンスを主目的とする衛星計画を立ち上げ、実際の打ち上げまで極めて短い期間で実現した。結果として、我々が世界で最初に紫外線広視野サーベイを実現できる見込みである。これは、望遠鏡開発だけでなし得たものではなく、観測技術を恒星姿勢計に転用して国産衛星の性能を大幅に底上げできたことが大きく、すでに大学、企業、JAXA等から商談を受けている。このような機動的な事業化は、我々が独自に提唱する「持ち寄りパーティー型」の産学連携に依るところであり、今後の宇宙科学・ビジネスのモデルケースとなるだろう。

Research Products

• [Int'l Joint Research] カリフォルニア工科大/ジェット推進研究所(米国)
• [Int'l Joint Research] 南洋工科大/シンガポール国際大学(シンガポール)
• [Int'l Joint Research] Goonhilly Earth Station Ltd(英国)
• [Int'l Joint Research] ハンガリー工科経済大学(ハンガリー)
• [Int'l Joint Research] カリフォルニア工科大/NASAジェット推進研究所/NASAゴダードスペースフライトセンター(米国)
• [Journal Article] J-GEM optical and near-infrared follow-up of gravitational wave events during LIGO’s and Virgo’s third observing run (2021)
  • Author(s): Sasada Mahito et al.
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 007 Issue: 5 Pages: 1-25
  • DOI: 10.1093/ptep/ptab007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Attitude Determination Algorithm Using Earth Sensor Images and Image Recognition (2021)
  • Author(s): Yuhei Kikuya, Yohei Iwasaki, Yoichi Yatsu, Saburo Matunaga
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES Volume: 64 Issue: 2 Pages: 82-90
  • DOI: 10.2322/tjsass.64.82
  • NAID: 130007994767
  • ISSN: 0549-3811, 2189-4205
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A GPU-accelerated image reduction pipeline (2020)
  • Author(s): Niwano Masafumi、Murata Katsuhiro L、Adachi Ryo、Wang Sili、Tachibana Yutaro、Yatsu Yoichi、Kawai Nobuyuki、Shimokawabe Takashi、Itoh Ryosuke
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 73 Issue: 1 Pages: 14-24
  • DOI: 10.1093/pasj/psaa091
  • Peer Reviewed
• [Journal Article] GROWTH on S190425z: Searching Thousands of Square Degrees to Identify an Optical or Infrared Counterpart to a Binary Neutron Star Merger with the Zwicky Transient Facility and Palomar Gattini-IR (2019)
  • Author(s): Coughlin Michael W., Yatsu et al.
  • Journal Title: The Astrophysical Journal Volume: 885 Issue: 1 Pages: L19-L19
  • DOI: 10.3847/2041-8213/ab4ad8
  • Peer Reviewed
• [Journal Article] Conceptual design of a wide-field near UV transient survey in a 6U CubeSat (2018)
  • Author(s): Yatsu Yoichi , Ozawa Toshiki , Mamiya Hideo , Kawai Nobuyuki , Kikuya Yuhei , Matsushita Masanori , Matunaga Saburo , Bilgi Pavaman , Nikzad Shouleh , Kulkarni Shrinivas R. , et al.
  • Journal Title: Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray Volume: - Pages: 1-12
  • DOI: 10.1117/12.2313026
  • Open Access / Int'l Joint Research
• [Presentation] 超小型の課題 (2022)
  • Author(s): 谷津陽一
  • Organizer: 高エネルギー宇宙科学連絡会・第21回高宇連研究会「今後の高宇連宇宙科学ミッション推進へ向けて」
  • Invited
• [Presentation] Ultraviolet Transient Explorer "PETREL (Umi-TSUBAME)" (2021)
  • Author(s): Yoichi YATSU
  • Organizer: Multi-messenger Astrophysics of Explosive Transients - Gravitational wave physics and astronomy: Genesis, Area Workshop 2021 Autumn -
  • Int'l Joint Research / Invited
• [Presentation] 陸・海域観測分光ビジネス実証および紫外線天文衛星 “うみつばめ” (2021)
  • Author(s): 谷津陽一
  • Organizer: 第65会宇宙科学技術連合講演会
• [Presentation] 小型衛星搭載用高性能スタートラッカの性能評価 (2021)
  • Author(s): 中村倫敦
  • Organizer: 第65会宇宙科学技術連合講演会
• [Presentation] 天文学から始まるSDGs衛星「うみつばめ計画」 (2021)
  • Author(s): 谷津陽一
  • Organizer: Tokyo Tech Research Festival
  • Invited
• [Presentation] PETREL: Platform for Extra and Terrestrial Remote Examination with LCTF (2021)
  • Author(s): Yoichi Yatsu
  • Organizer: Small Satellite Conference 2021
  • Invited
• [Presentation] 超小型衛星で切り拓く紫外線時間領域天文学 (2021)
  • Author(s): Yoichi Yatsu
  • Organizer: 宇宙科学シンポジウム
• [Presentation] Development of transient detection method and GPU-accelerated image reduction pipeline (2020)
  • Author(s): Katsuhiro Murata
  • Organizer: SPIE
  • Int'l Joint Research
• [Presentation] Origin of the in-orbit instrumental background of the Hard X-ray Imager onboard Hitomi (2020)
  • Author(s): Kouichi Hagino
  • Organizer: SPIE
  • Int'l Joint Research
• [Presentation] Origin of the in-orbit instrumental background of the Hard X-ray Imager onboard Hitomi (2020)
  • Author(s): Naoki Ogino
  • Organizer: SPIE
  • Int'l Joint Research
• [Presentation] High-redshift gamma-ray burst for unraveling the Dark Ages Mission: HiZ-GUNDAM (2020)
  • Author(s): Daisuke Yonetoku
  • Organizer: Gravitational wave physics and astronomy: Genesis, KICKOFF workshop
  • Int'l Joint Research
• [Presentation] Engineering Model Development Status of HIBARI: Micro Satellite for Technology Demonstration of Variable Shape Attitude Control (2020)
  • Author(s): Kei Watanabe
  • Organizer: 宇宙科学技術連合講演会
• [Presentation] Engineering Model Development of HIBARI: MicroSatellite for Technology Demonstration of Variable-Shape Attitude Control (2020)
  • Author(s): Kei Watanabe
  • Organizer: Small Satellite Conference
  • Int'l Joint Research
• [Presentation] 深層学習を応用した革新的地球センサ・スタートラッカーの開発 (2020)
  • Author(s): 谷津 陽一
  • Organizer: JAXA革新的衛星技術実証ワークショップ 2020
  • Invited
• [Presentation] 世界初の紫外線時間領域天文衛星打ち上げへ (2020)
  • Author(s): 谷津 陽一
  • Organizer: 第11回光赤外線大学間連携ワークショップ
  • Invited
• [Presentation] 6U CubeSat for Ultraviolet Time-Domain Astronomy (2019)
  • Author(s): Yoichi Yatsu, Nobuyuki Kawai, Shrinivas Kulkarni, Saburo Masunaga, Kiyono Miyamoto,, Kenichi Sasaki, Hiroki Ando, Tsuyoshi Nakashima
  • Organizer: Small Satellite Conference
  • Int'l Joint Research
• [Presentation] Ultra wide-field UV transient exploration satellite Hibari (2019)
  • Author(s): Yoichi Yatsu, Nobuyuki Kawai, Shouleh Nikzad, Shrinivas Kulkarni, Nozomu Tominaga, Masaomi Tanaka, Tomoki Morokuma, Naotaka Suzuki, Saburo Matunaga, Norihide Takeyama, Akihito Inokuchi
  • Organizer: The Fourth COSPAR Symposium Small Satellites for sustainable Science and Development
  • Int'l Joint Research
• [Presentation] Development and Initial On-orbit Performance of Multi-Functional Attitude Sensor using Image Recognition (2019)
  • Author(s): Yohei Iwasaki, Yuhei Kikuya, Toshiki Ozawa, Yusuke Shintani, Yuto Masuda, Kei Watanabe, Hideo Mamiya, Hiroki Ando, Tsuyoshi Nakashima, Yoichi Yatsu, Saburo Matunaga
  • Organizer: Small Satellite Conference
  • Int'l Joint Research
• [Presentation] Concept Design and Development of 30kg Microsatellite HIBARI for Demonstration of Variable Shape Attitude Control (2019)
  • Author(s): Kei Watanabe, Yuhei Kikuya, Yusuke Shintani, Kenichi Sasaki, Hiroki Ando, Tsuyoshi Nakashima, Kiyono Miyamoto, Kaoru Matsubara Saburo Matsunaga , Yoichi Yatsu
  • Organizer: Small Satellite Conference
  • Int'l Joint Research
• [Presentation] 突発天体探査のための超広視野紫外線サーベイ計画 (2019)
  • Author(s): 谷津 陽一、間宮英生、小澤俊樹、河合誠之、冨永望、田中雅臣、諸隈智貴、S.R.Kulkarni、P Bilgi、S.Nikzad、新谷勇介、菊谷侑平、松永三郎、武山芸英、江野口章人
  • Organizer: 超小型衛星利用シンポジウム
• [Presentation] 紫外線広視野サーベイのためのキューブサットの開発 II (2019)
  • Author(s): 谷津陽一, 間宮英夫, 小澤俊貴, 河合誠之, 新谷勇介, 菊谷侑平, 松永三郎, 冨永 望, 田中雅臣, 諸隈智貴, Shouleh Nikzad, Pavaman Bilgi, Shrinivas Kulkarni, 武山芸英, 江野口章人
  • Organizer: 日本天文学会2019春季年会
• [Presentation] 紫外線広視野サーベイのための超小型衛星開発 (2018)
  • Author(s): 谷津 陽一、小澤俊貴、間宮英生、河合誠之 、 菊谷侑平、松下将典、松永三郎 、S. Nikzad, P. Bilgi, S.R. Kulkarni、冨永望、田中雅臣、諸隈智貴、坂本貴紀、N. Vasquez
  • Organizer: 高エネルギー宇宙物理学連絡会研究会（2018）
• [Presentation] 紫外線広視野サーベイのためのキューブサット開発 (2018)
  • Author(s): 谷津 陽一、間宮英生、小澤俊貴、河合誠之、 菊谷侑平、松下将典、松永三郎、 冨永望、田中雅臣、諸隈智貴、S. Nikzad、P. Bilgi、S.R. Kulkarni、坂本貴紀、武山芸英、江野口章人
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] WIDE-FIELD UV SURVEY FOR THE EARLY PHASE EMISSION FROM GW SOURCES (2018)
  • Author(s): Yoichi Yatsu, Nobuyuki Kawai, Saburo Matunaga, Shouleh Nikzad, Shrinivas Kulkarni, Nozomu Tominaga, Yuhei Kikuya, Pavaman Bilgi, Masanori Matsushita, Masaomi Tanaka, Tomoki Morokuma, Hideo Mamiya, Yusuke Shintani, Norihide Takeyama, Akito Enokuchi
  • Organizer: 42nd COSPAR Scientific Assembly 2018
  • Int'l Joint Research
• [Presentation] Status report of the Wide-Field UV Space Telescope (2018)
  • Author(s): Y. Yatsu, T. Ozawa, H. Mamiya, N. Kawai, S. Matunaga, S. Nikzad, P. Bilgi, S. Kulkarni, N. Tominaga, M. Tanaka, T. Morokuma, T. Sakamoto, N. Vasquez, on behalf of Hibari team
  • Organizer: GW Genesis Annual meeting 2018
  • Int'l Joint Research
• [Presentation] Micro-satellite for Ultraviolet Transient Exploration (2017)
  • Author(s): Y. Yatsu, T. Ozawa, S. Harita, N. Kawai, K. Tawara, S. Matunaga, S. Nikzad P. Bilgi, S. Kulkarni, N. Tominaga, M. Tanaka, T. Morokuma, T. Sakamoto, N. Vasquez, on behalf of Hibari team
  • Organizer: Astrorob2017
  • Int'l Joint Research
• [Presentation] 超小型衛星による広視野・紫外線サーベイ (2017)
  • Author(s): 谷津陽一、小澤俊貴、間宮英生、河合誠之、菊谷侑平、松永三郎、S.Nikzad、P.Bilgi、S.R.Kulkarni、冨永望、田中雅臣、諸隈智貴、坂本貴紀、N.Vasquesz
  • Organizer: 2017GRB研究会
  • Invited
• [Remarks] うみつばめ Project PETREL
  • URL: http://www.hp.phys.titech.ac.jp/umitsubame/
• [Remarks] HIBARI -ひばり- 可変形状姿勢制御実証衛星
  • URL: http://lss.mes.titech.ac.jp/hibari_index/
• [Remarks] 可変形状姿勢制御実証衛星「ひばり」を開発
  • URL: https://www.titech.ac.jp/news/2021/061997
• [Remarks] 革新的衛星技術実証3号機
  • URL: https://www.kenkai.jaxa.jp/kakushin/kakushin03.html#petrel
• [Remarks] 産学連携のチームによる陸・海観測超小型衛星プロジェクト
  • URL: https://www.titech.ac.jp/news/2020/047297.html
• [Remarks] 「革新的衛星技術実証３号機のテーマ公募」選定結果について
  • URL: https://www.kenkai.jaxa.jp/kakushin/news/202005_1.html
• [Remarks] 深層学習でリアルタイム軌道上画像識別を実現
  • URL: https://www.titech.ac.jp/news/2018/043225.html
• [Remarks] 研究テーマを宇宙で実証 JAXAのイプシロンロケット4号機で打上げへ
  • URL: https://www.titech.ac.jp/news/2019/043335.html
• [Remarks] 宇宙に行くOlive、重力波を生んだブラックホール衝突の謎に挑む
  • URL: https://special.nikkeibp.co.jp/atcl/TEC/16/090700042/120900006/?P=2
• [Remarks] 深層学習を用いた画像認識技術
  • URL: http://www.kenkai.jaxa.jp/kakushin/interview/01/interview07.html
• [Remarks] Microsatellites in Tokyo Tech
  • URL: https://www.titech.ac.jp/english/research/stories/space_and_satellite.html
• [Patent(Industrial Property Rights)] 画像処理装置 (2018)
  • Inventor(s): 谷津陽一
  • Industrial Property Rights Holder: 国立大学法人東京工業大学
  • Industrial Property Rights Type: 特許
  • Patent Publication Number: 2020-015416
  • Filing Date: 2018
  • Acquisition Date: 2020
• [Patent(Industrial Property Rights)] 画像処理装置 (2018)
  • Inventor(s): 谷津陽一、岩崎陽平、菊谷侑平、松永三郎
  • Industrial Property Rights Holder: 谷津陽一、岩崎陽平、菊谷侑平、松永三郎
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2018-139611
  • Filing Date: 2018
• [Patent(Industrial Property Rights)] 画像処理装置 (2018)
  • Inventor(s): 谷津陽一
  • Industrial Property Rights Holder: 谷津陽一
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2018-134620
  • Filing Date: 2018