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Study on structure of the Milky Way galaxy and mechanisms of cosmic transient phenomena probed by optical all-sky polarimetric survey

Research Project

Project/Area Number 18H03720
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 16:Astronomy and related fields
Research InstitutionHiroshima University

Principal Investigator

Kawabata Koji  広島大学, 宇宙科学センター, 教授 (60372702)

Co-Investigator(Kenkyū-buntansha) 渡邉 誠  岡山理科大学, 理学部, 准教授 (10450181)
西山 正吾  宮城教育大学, 教育学部, 准教授 (20377948)
松村 雅文  香川大学, 教育学部, 教授 (50239084)
當真 賢二  東北大学, 学際科学フロンティア研究所, 准教授 (70729011)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000)
Fiscal Year 2020: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2019: ¥23,400,000 (Direct Cost: ¥18,000,000、Indirect Cost: ¥5,400,000)
Fiscal Year 2018: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Keywords光学赤外線天文学 / 宇宙物理学 / 宇宙科学 / 星間物質 / 偏光 / 銀河磁場 / ガンマ線バースト / 星間ダスト
Outline of Final Research Achievements

By designing of a half-wave plate and a polarization beam splitter with a large effective areas, wide-wavebands and large tolerance angles of incidence as well as a compact optical train that hold the key to realize the wide-field polarimeter for the SGMAP project, which builds a large-scale and highly accurate polarization database provided by polarimetric survey of millions of stars in the northern hemisphere, and through the optical test of their prototype or simulation of them, the feasibility of the optical and near-infrared multi-band polarization survey with a 1.5-m Kanata telescope. In addition, we carry out polarization imaging observations of Galactic plane area and polarized objects showing time variation using existing equipment, develop a data reduction pipeline for the polarization survey observations based on actual data, and thus get the beginning of the astronomical researches on the three-dimensional structure of Galactic magnetic field, etc.

Academic Significance and Societal Importance of the Research Achievements

「偏光」は電磁波が有する基本的情報であり、強度のみでは判り得ない空間分解能以下の天体の形状や電磁波の放射機構、放射源ないし星間媒質中の磁場の向き、散乱体の光学的性質などといったベクトル的情報をもたらしてくれる有効な観測手段であるが、現存する可視全天偏光サーベイカタログは主として1960-80年代の非一様な偏光観測をまとめた高々1万個の(単バンドの)ものに留まっている。2桁以上多いサンプルに対し複数バンドの偏光カタログを得ることにより、銀河系の物質進化を司る銀河磁場の三次元マッピングをはじめ、活動銀河核やガンマ線バーストのジェット生成機構等、天文学上の大きな派生効果が期待される。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (27 results)

All 2022 2021 2020 2018 Other

All Int'l Joint Research (6 results) Journal Article (12 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 9 results,  Open Access: 9 results) Presentation (5 results) (of which Int'l Joint Research: 3 results) Remarks (3 results) Funded Workshop (1 results)

  • [Int'l Joint Research] Universidade de Sao Paulo/INPE/MCTI(ブラジル)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Radboud University(オランダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 中国科学院国家天文台/中国科学院紫金山天文台(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Sao Paulo/Inst. Nac. de Pesquisas Espaciais(ブラジル)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] RADOUD University(オランダ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Univ. São Paulo(ブラジル)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Characterisations of the HinOTORI telescope with a three-color imager at Ali Observatory in Western Tibet2022

    • Author(s)
      Liu W.、Utsumi Y.、Yao Y.Q.、Kawabata K.S.、Sasada M.、Yoshida M.、Yin J.、Lou Z.
    • Journal Title

      Journal of Instrumentation

      Volume: 17 Issue: 01 Pages: P01022-P01022

    • DOI

      10.1088/1748-0221/17/01/p01022

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Kottamia Faint Imaging Spectro-Polarimeter (KFISP): opto-mechanical design, software control and performance analysis2021

    • Author(s)
      Azzam Yosry A.、Elnagahy F. I. Y.、Ali Gamal B.、Essam A.、Saad Somaya、Ismail Hamed、Zead I.、Ahmed Nasser M.、Yoshida Michitoshi、Kawabata Koji S.、Akitaya Hiroshi、Shokry A.、Hendy Y. H. M.、Takey Ali、Hamed G. M.、Mack Peter
    • Journal Title

      Experimental Astronomy

      Volume: 53 Issue: 1 Pages: 45-70

    • DOI

      10.1007/s10686-021-09802-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Implications of High Polarization Degree for the Surface State of Ryugu2021

    • Author(s)
      Kuroda D., Geem J., Akitaya H., Jin S., Takahashi J., Takahashi K., Naito H., Makino K., Sekiguchi T., Bach Y. P., Seo J., Sato S., Sasago H., Kawabata K. S., Kawakami A., Tozuka M., Watanabe M., Takagi S., Kuramoto K., Yoshikawa M., Hasegawa S., Ishiguro M.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 911 Issue: 2 Pages: L24-L24

    • DOI

      10.3847/2041-8213/abee25

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Follow-up observations for IceCube-170922A: Detection of rapid near-infrared variability and intensive monitoring of TXS 0506+0562021

    • Author(s)
      Morokuma Tomoki、Utsumi Yousuke、Ohta Kouji、他36名
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 1 Pages: 25-43

    • DOI

      10.1093/pasj/psaa110

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 13332020

    • Author(s)
      Doi Yasuo、Hasegawa Tetsuo、Furuya Ray S.、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 899 Issue: 1 Pages: 28-28

    • DOI

      10.3847/1538-4357/aba1e2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Blazar Radio and Optical Survey (BROS): A Catalog of Blazar Candidates Showing Flat Radio Spectrum and Their Optical Identification in Pan-STARRS1 Surveys2020

    • Author(s)
      Itoh Ryosuke、Utsumi Yousuke、Inoue Yoshiyuki、Ohta Kouji、Doi Akihiro、Morokuma Tomoki、Kawabata Koji S.、Tanaka Yasuyuki T.
    • Journal Title

      The Astrophysical Journal

      Volume: 901 Issue: 1 Pages: 3-3

    • DOI

      10.3847/1538-4357/abab07

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of multi-conjugate adaptive optics system for monitoring of solar system planets2020

    • Author(s)
      Watanabe Makoto、Oya Shin、Goda Shuhei、Nakamoto Jumpei、Teraji Keisuke、Ishikoso Hiroaki、Morisada Shouta、Kamakari Hiroshi R.、Mizukose Fuka、Yamane Hiromasa、Sagisaka Kanta、Yokoyama Masaru、Kawabata Koji S.
    • Journal Title

      Proceedings of the SPIE

      Volume: 11448 Pages: 298-298

    • DOI

      10.1117/12.2561196

    • Related Report
      2019 Annual Research Report
  • [Journal Article] The HinOTORI Telescope and its remote control system2020

    • Author(s)
      Liu Wei、Utsumi Yousuke、Kawabata Koji S.、Sasada Mahito、Yao Yongqiang、Zuo Yingxi、Lou Zheng、Shi Shengcai
    • Journal Title

      Proceedings of the SPIE

      Volume: 11448 Pages: 112-112

    • DOI

      10.1117/12.2560801

    • Related Report
      2019 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] The Low-luminosity Type IIP Supernova 2016bkv with Early-phase Circumstellar Interaction2018

    • Author(s)
      Nakaoka T.、Kawabata K.S.、Maeda K.、Tanaka M.、Yamanaka M.、Moriya T.J.、Tominaga N.、Morokuma T.、Takaki K.、Kawabata M.、Kawahara N.、Itoh R.、Shiki K.、Mori H.、Hirochi J.、Abe T.、Uemura M.、Yoshida M.、Akitaya H.、Moritani Y.、Ueno I.、Urano T.、Isogai M.、Hanayama H.、Nagayama T.
    • Journal Title

      The Astrophysical Journal

      Volume: 859 Issue: 2 Pages: 78-78

    • DOI

      10.3847/1538-4357/aabee7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A2018

    • Author(s)
      The IceCube Collaboration、Fermi-LAT、MAGIC、AGILE、ASAS-SN、HAWC、H.E.S.S.、INTEGRAL、Kanata、Kiso、Kapteyn、Liverpool Telescope、Subaru、Swift/NuSTAR、VERITAS、VLA/17B-403 teams
    • Journal Title

      Science

      Volume: 361 Issue: 6398 Pages: 1378-1378

    • DOI

      10.1126/science.aat1378

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extended optical/NIR observations of Type Iax supernova 2014dt: Possible signatures of a bound remnant2018

    • Author(s)
      Kawabata, Miho; Kawabata, Koji S.; Maeda, Keiich; Yamanaka, Masayuki; Nakaoka, Tatsuya; Takaki, Katsutoshi; Fukushima, Daiki; Kojiguchi, Naoto; Masumoto, Kazunari; Matsumoto, Katsura; Akitaya, Hiroshi; Itoh, Ryosuke, et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 70 Issue: 6 Pages: 111-132

    • DOI

      10.1093/pasj/psy116

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of a compact readout system for optical CCD in Higashi-Hiroshima Observatory2018

    • Author(s)
      Liu Wei , Kawabata Koji , Sako Shigeyuki , Yoshida Michitoshi , Shi Sheng-Cai , Utsumi Yousuke
    • Journal Title

      High Energy, Optical, and Infrared Detectors for Astronomy VIII

      Volume: - Pages: 1-1

    • DOI

      10.1117/12.2311910

    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 可視偏光サーベイ計画 SGMAP:北天銀河面の可視近赤外サーベイと南天観測の海外協力2021

    • Author(s)
      川端弘治(広島大)、秋田谷洋(千葉工大)ほか、 SGMAP協力グループ
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Optical Polarimetry for Bright Early Afterglow of GRB 180720B2021

    • Author(s)
      Koji S. Kawabata, Kengo Takagi, Miho Kawabata, Tatsuya Nakaoka, Mahito Sasada, Masayuki Yamanaka
    • Organizer
      IAU Symposium 360: Astronomical Polarimetry 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Imaging Polarimetric Observations of Nearby Supernovae2021

    • Author(s)
      Masayuki Yamanaka, Brajesh Kumar, Koji Kawabata, Avinash Singh, G. C. Anupama, Devendra Sahu, Tatsuya Nakaoka, Miho Kawabata
    • Organizer
      IAU Symposium 360: Astronomical Polarimetry 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ALL-SKY SURVEY IN POLARIZED LIGHT2018

    • Author(s)
      A. M. Magalhaes and K. S. Kawabata
    • Organizer
      Japan-Latin America Academic Conference 2018 in Nikko: Astronomy and Astronomical Instrumentation
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Status of Hiroshima 1.5m Optical Telescope and SGMAP optical survey project2018

    • Author(s)
      Koji S. Kawabata
    • Organizer
      Gravitational Wave Physics and Astronomy: Genesis
    • Related Report
      2018 Annual Research Report
  • [Remarks] SGMAP homepage

    • URL

      http://1601-031.a.hiroshima-u.ac.jp/sgmap/

    • Related Report
      2020 Annual Research Report
  • [Remarks] SGMAP home page

    • URL

      http://1601-031.a.hiroshima-u.ac.jp/sgmap/

    • Related Report
      2019 Annual Research Report
  • [Remarks] SGMAPプロジェクト ホームページ

    • URL

      http://1601-031.a.hiroshima-u.ac.jp/sgmap/

    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] IAU Symposium 360: Astronomical Polarimetry 20202021

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

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