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

Performance verification of high stable spectrograph for characterization of transiting Earth-like planets

Research Project

Project/Area Number 17KK0090
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research)

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionNagoya University (2019)
Osaka University (2017-2018)

Principal Investigator

Matsuo Taro  名古屋大学, 理学研究科, 准教授 (00548464)

Project Period (FY) 2018 – 2019
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Keywords太陽系外惑星 / 惑星大気 / 精密分光測光 / 中間赤外線 / 太陽系外惑星科学 / 中間赤外線検出器 / 極低温 / 精密分光 / 高精度分光測光 / 検出器 / 地球型系外惑星の分光観測 / 高安定分光器 / 宇宙望遠鏡
Outline of Final Research Achievements

This study establishes a technology for measuring the atmospheric compositions of Earth-sized planets orbiting nearby stars under a collaboration with NASA Ames Research Center. This technology, which is called "Densified Pupil Spectrograph (DPS)," enables us to perform extremely stable spectroscopy over a few hours under an existence of telescope pointing jitter and deformation of primary mirror. In this study, we built a prototype densified pupil spectrograph at NASA Ames Research Center. We successfully obtained the spectra of the densified sub-pupils on the detector plane and reduced the systematic noise of the spectrograph down to 10 parts-per-million (ppm).

Academic Significance and Societal Importance of the Research Achievements

2009年に打ち上げられたKepler衛星によって、地球サイズの太陽系外惑星は宇宙に普遍的に存在することが明らかにされた。さらに、2018年に打ち上げが成功した、Transiting Exoplanets Survey Satellite (TESS)や地上望遠鏡によって、太陽系近傍において続々と食を起こす地球サイズの惑星が発見されている。この食を起こす惑星の表層環境や生命活動の有無を調査することが今後20年の目標である。本研究は、食を起こす惑星の大気を精密に分光する新しい瞳収縮分光技術をNASAと協力しながら確立し、将来の大型宇宙望遠鏡において実現する道筋を作ることができた。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2019 2018

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

  • [Int'l Joint Research] NASA Ames Research Center(米国)2018

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Photometric Precision of a Si:As Impurity Band Conduction Mid-Infrared Detector and Application to Transit Spectroscopy2019

    • Author(s)
      T. Matsuo, T. Greene, R. Johnson, R. E. McMurray, T. Roellig, K. Ennico
    • Journal Title

      Publication of Astronomical Society of Pacific

      Volume: 131 Issue: 1006 Pages: 1006-1006

    • DOI

      10.1088/1538-3873/ab42f1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Point spread function of hexagonally segmented telescopes by new symmetrical formulation2019

    • Author(s)
      S. Itoh, T. Matsuo, H. Shibai, T. Sumi
    • Journal Title

      Monthly Notice of the Roycal Astronomical Society

      Volume: 483 Issue: 1 Pages: 119-131

    • DOI

      10.1093/mnras/sty3052

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A highly stable spectrophotometric capability for the Origins Space Telescope (OST) mid-infrared imager, spectrometer, coronagraph (MISC)2018

    • Author(s)
      T. Matsuo, T. Greene, T. Roellig et al.
    • Journal Title

      Proceedings of SPIE

      Volume: 10698 Pages: 1-12

    • DOI

      10.1117/12.2311896

    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Journal Article] A New Method for Calibration of Gain Variation in a Detector System2018

    • Author(s)
      S. Goda, T. Matsuo
    • Journal Title

      Astronomical Journal

      Volume: 156 Issue: 6 Pages: 288-288

    • DOI

      10.3847/1538-3881/aaeb29

    • Related Report
      2018 Research-status Report
    • Peer Reviewed

URL: 

Published: 2018-01-25   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi