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Development of X-ray optics for all-sky monitor to observe electromagnetic candidates of gravitational events

Research Project

Project/Area Number 19K03890
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionAoyama Gakuin University

Principal Investigator

Sugita Satoshi  青山学院大学, 理工学部, 助教 (30573563)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords重力波源電磁波対応天体 / X線光学 / 高エネルギー宇宙物理学 / ガンマ線バースト / 重力波イベント電磁波対応天体 / 全天モニタ / X線光学 / 重力波対応天体
Outline of Research at the Start

重力波望遠鏡 LIGO 及び Virgo によってついに観測され始めた重力波であるが、その発生天体及び付随する物理現象を解明するためには電磁波対応天体の未だ観測されていない早期 X 線放射の観測と位置決定が重要である。従来の全天 X 線モニタの検出感度を改善するため X 線光学系を搭載し、 重力波イベント電磁波対応天体の検出を可能にする全天 X 線モニタの設計の確立を目指す。

Outline of Final Research Achievements

We developed a wide-field X-ray optics that improve the detection sensitivity of X-ray all-sky monitors. It aims to observe X-ray emissions in early phase from electromagnetic candidates of graitational-wave events.
We fabricated X-ray mirrors by two methods, a replica method and a silico wafer method. The desing of a double-reflection X-ray focusing optics was investigated using X-ray optical simulations with Geant 4. Base on the simulations, we succeeded in a design with a detection sensitivity of about 10-10th power erg/cm2/s brightness in gamma-ray bursts. We maed a partial test model of the X-ray optics and performed X-ray imaging experiments at the 30 m X-ray beamline of ISAS, and X-ray focused images of the test model were successfully obtained.

Academic Significance and Societal Importance of the Research Achievements

従来のX線全天モニタに一次元方向のみの広視野光学系を搭載することで検出感度を上げるという設計の検討を始めて行った。
広視野X線光学系を搭載することで従来の全天モニタより一桁程度感度を上昇できることを Geant 4 を用いたシミュレーションで示すことができた。広視野X線光学系を構成するX線反射鏡の基礎的な製作工程を確立した

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (4 results)

All 2021 2019

All Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 広視野X線集光系の光跡シミュレーション2021

    • Author(s)
      杉田聡司
    • Organizer
      天文学会秋季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 広視野X線集光系のためのX線ミラーの開発2021

    • Author(s)
      清田力
    • Organizer
      天文学会秋季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 全天X線モニタ用光学系の開発2019

    • Author(s)
      杉田聡司
    • Organizer
      日本天文学会2019年秋季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Development of X-Ray Optical System for All-Sky Monitor2019

    • Author(s)
      小笠原健也
    • Organizer
      Gamma-ray Bursts in the Gravitational Wave Era 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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