• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of high-resolution Imaging and spectroscopic polarimetry

Research Project

Project/Area Number 19K21886
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 16:Astronomy and related fields
Research InstitutionJapan Aerospace EXploration Agency

Principal Investigator

Yoshitomo Maeda  国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 助教 (80342624)

Co-Investigator(Kenkyū-buntansha) 坪井 陽子  中央大学, 理工学部, 教授 (70349223)
Project Period (FY) 2019-06-28 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
KeywordsX線天文学 / 分光 / 撮像 / 偏光 / X線望遠鏡
Outline of Research at the Start

偏光・分光・撮像の3大観測能力を高いレベルで備えた新しいX線望遠鏡の実証を行う。
この3つが同時に実現できると、それぞれの観測能力で世界最先端を実現できる。
鉄などの輝線を一本一本分離し、その偏光度マッピングが世界で初めて可能になる。
つまり、輝線ダイナミクス&偏光&撮像という全く新しい高エネルギー天文学に挑むことができる。
コンプトンダウン散乱を用いた中心核ブラックホールの周りのガスの3次元分布や共鳴散乱を用いた銀河団ガスの質量・ダイナミクスなどへの貢献へとつなげる。

Outline of Final Research Achievements

Using replica technology, we have been able to create slits with micro meter accuracy. We also found that the internal stress of the gold causes the entire slit to shrink regardless of the processing conditions. The level of our technology is definitely improving.
The image reconstruction technique is the key to the success of this telescope, and the software was also improved this year. For data in the Poisson limit, the Richardson-Lucy method is generally the preferred method, so we coded it and made it available.
As for the focusing telescope, during the funding period, the laboratory access was strongly restricted due to the policy to prevent the spread of the new coronavirus, which caused a significant delay in its fabrication. We managed to produce a prototype of the technology for improving the integral reflectance in the final year of the project.

Academic Significance and Societal Importance of the Research Achievements

偏光・分光・撮像の3大観測能力を高いレベルで同時に満たすのは技術的ハードルがとても高い。ただし、この3つが同時に実現できると、鉄などの輝線を一本一本分離し、その偏光度マッピングが世界で初めて可能になる。つまり、輝線ダイナミクス&偏光&撮像という全く新しい高エネルギー天文学に挑むことができる。
コンプトンダウン散乱を用いた中心核ブラックホールの周りのガスの3次元分布や共鳴散乱を用いた銀河団ガスの質量・ダイナミクスなどの大幅な進展が期待される。当研究は、その未踏の分野へ踏み込む一歩となる研究と位置づけている。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] The design and performance of the XL-Calibur anticoincidence shield2023

    • Author(s)
      Iyer N.K.、(13名省略)、Kitaguchi T.、(19名省略)
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 1048 Pages: 167975-167975

    • DOI

      10.1016/j.nima.2022.167975

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] X-ray/Hα scaling relationships in stellar flares2022

    • Author(s)
      Kawai Hiroki、Tsuboi Yohko、Iwakiri Wataru B、Maeda Yoshitomo、Katsuda Satoru、Sasaki Ryo、Kohara Junya、MAXI TEAM
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Issue: 2 Pages: 477-487

    • DOI

      10.1093/pasj/psac008

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spatial distribution of the X-ray-emitting plasma of SS?Cygni in quiescence and outburst2021

    • Author(s)
      Takeo Mai、Hayashi Takayuki、Ishida Manabu、Nakaniwa Nozomi、Maeda Yoshitomo
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 5 Pages: 1418-1428

    • DOI

      10.1093/pasj/psab086

    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Journal Article] X-ray transmission calibration of the gate valve for the X-ray astronomy satellite XRISM2021

    • Author(s)
      Takuya Midooka, Masahiro Tsujimoto, Shunji Kitamoto, Nozomi Nakaniwa, Yoshitomo Maeda, Manabu Ishida, Ken Ebisawa, Mayu Tominaga
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 7(2) Issue: 02 Pages: 28005-28005

    • DOI

      10.1117/1.jatis.7.2.028005

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] New Measurement of the Vertical Atmospheric Density Profile From Occultations of the Crab Nebula With X‐Ray Astronomy Satellites Suzaku and Hitomi2021

    • Author(s)
      Katsuda Satoru、Fujiwara Hitoshi、Ishisaki Yoshitaka、Yoshitomo Maeda、Mori Koji、Motizuki Yuko、Sato Kosuke、Tashiro Makoto S.、Terada Yukikatsu
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126 Issue: 4 Pages: 1-20

    • DOI

      10.1029/2020ja028886

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 湾曲 Si 結晶を用いたブラッグ反射型偏光計の分光性能評価 (2)2022

    • Author(s)
      井上諒大, 坪井陽子, 岩切渉, 中島七海 , 前田良知
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] XRISM's observations of Eta Carinae2021

    • Author(s)
      前田良知, the XRISM PV, Eta Carinae team
    • Organizer
      nuclear burning in massive stars; towards the formation of binary black holes
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2019-07-04   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi