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Concept design of X-ray CubeSats for observing fast spinning neutron stars as coherent GW emitters

Research Project

Project/Area Number 17K18776
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Particle-, Nuclear-, Astro-physics, and related fields
Research InstitutionKyoto University

Principal Investigator

Enoto Teruaki  京都大学, 白眉センター, 特定准教授 (20748123)

Co-Investigator(Kenkyū-buntansha) 北口 貴雄  国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 協力研究員 (30620679)
Research Collaborator NAMBU Yohsuke  
ITOH Yousuke  
TAKAHASHI Hiromitsu  
KOJIMA Yasufumi  
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords重力波 / 超小型衛星 / X線 / 中性子星 / さそり座X-1 / X線集光系 / 定常重力波 / X線連星 / パルサー / X線観測 / NICER / X線天文学 / 小型衛星
Outline of Final Research Achievements

We are aiming to support LIGO and other projects to search for coherent GW signals from fast spinning neutron stars using the high-throughput and long-term X-ray monitoring observations. Using the NICER X-ray observatory on board the ISS, we obtained a new timing ephemeris of X-ray pulsars, PSR J1412+7922 and PSR J1849-0001. This is expected to be useful for the future GW search from these isolated neutron stars. In addition, we are also performing a concept design of X-ray CubeSats dedicated for Sco X-1, one of the brightest X-ray source in the Sky hosting a fast-spiting neutron star in a binary system, which is a candidate of the coherent GW signal.

Academic Significance and Societal Importance of the Research Achievements

国際宇宙ステーションで新たに稼働したX線望遠鏡 NICER での国際連携プロジェクトに参加することで、高速で回転するX線パルサーの自転情報を精度よく決めることができた。これは今後の重力波探査にも有力な情報となると期待できる。さらに、NICER のノウハウを活用したX線での超小型衛星の概念設計を進めることができた。その結果、現状の超小型衛星の姿勢系安定度や指向性に沿った、観測機器のデザインの改良を進めている。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (20 results)

All 2019 2018 2017 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (16 results) (of which Int'l Joint Research: 3 results,  Invited: 8 results) Remarks (1 results)

  • [Journal Article] Neutron Star Interior Composition Explorer X-ray Timing of the Radio and Gamma-ray Quiet Pulsars PSR J1412+7922 AND PSR J1849-00012019

    • Author(s)
      S. Bogdanov, W.C.G. Ho, T. Enoto et al.
    • Journal Title

      the Astrophysical Journal (accepted)

      Volume: 0 Pages: 0-0

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A NuSTAR study of the 55 ks hard X-ray pulse-phase modulation in the magnetar 4U 0142+612018

    • Author(s)
      Makishima Kazuo、Murakami Hiroaki、Enoto Teruaki、Nakazawa Kazuhiro
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 71 Issue: 1 Pages: 0-0

    • DOI

      10.1093/pasj/psy129

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] NICER Discovers the Ultracompact Orbit of the Accreting Millisecond Pulsar IGR J17062?61432018

    • Author(s)
      Strohmayer T. E.、Arzoumanian Z.、Bogdanov S.、Bult P. M.、Chakrabarty D.、Enoto T.、Gendreau K. C.、Guillot S.、Harding A. K.、Ho W. C. G.、Homan J.、Jaisawal G. K.、Keek L.、Kerr M.、Mahmoodifar S.、Markwardt C. B.、Ransom S. M.、Ray P. S.、Remillard R.、Wolff M. T.
    • Journal Title

      The Astrophysical Journal

      Volume: 858 Issue: 2 Pages: L13-L13

    • DOI

      10.3847/2041-8213/aabf44

    • Related Report
      2018 Annual Research Report
  • [Presentation] NICER の初期成果とコンパクト天体観測の将来2019

    • Author(s)
      榎戸輝揚
    • Organizer
      第18回高宇連研究会「高エネルギー宇宙物理学の最前線と2020/30年代のロードマップ」
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 重力波天文学や時間軸天文学に向けたスケーラブルな超小型X線衛星2019

    • Author(s)
      榎戸輝揚
    • Organizer
      超小型衛星利用シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] さそり座 X-1 のX線モニタリングに特化した超小型衛星プロジェクト構想2019

    • Author(s)
      榎戸輝揚
    • Organizer
      日本天文学会 春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] パルサーやマグネターのX線-電波同時観測2019

    • Author(s)
      榎戸輝揚
    • Organizer
      茨城大学重点研究・研究会「突発・変動現象の電波フォローアップ
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Magnetars and Rotation-powered Pulsars with NICER2019

    • Author(s)
      榎戸輝揚
    • Organizer
      233rd Meeting of the American Astronomical Society
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高時間分解能なX線観測と可視光・近赤外の連携2018

    • Author(s)
      榎戸輝揚
    • Organizer
      第9回光赤外線天文学大学間連携ワークショップ
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] PhoENiXへの期待:マグネター・フレアの視点から2018

    • Author(s)
      榎戸輝揚
    • Organizer
      宇宙プラズマにおける粒子加速ワークショップ
    • Related Report
      2018 Annual Research Report
  • [Presentation] X-ray CubeSat Project to Search for Continuous Gravitational Wave from Scorpius X-12018

    • Author(s)
      Teruaki Enoto
    • Organizer
      The Second Annual Area Symposium, Gravitational Wave Physics and Astronomy: Genesis
    • Related Report
      2018 Annual Research Report
  • [Presentation] さそり座X-1の専用モニタリング小型衛星による定常重力波への挑戦2018

    • Author(s)
      榎戸輝揚
    • Organizer
      新学術領域「重力波物理学・天文学創世記」B班ワークショップ
    • Related Report
      2018 Annual Research Report
  • [Presentation] The Neutron star Interior Composition Explorer (NICER) - First Results2018

    • Author(s)
      Teruaki Enoto
    • Organizer
      MONDELLO WORKSHOP 2018 on Frontier Research in Astrophysics - III
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高速自転する中性子星からの 定常重力波の検出に向けた、X線による連携観測の開拓12018

    • Author(s)
      北口貴雄, 榎戸輝揚, 岡島崇, 伊藤洋介, 岩切渉, 小嶌康史, 高橋弘充, 南部陽介
    • Organizer
      日本天文学会2018年春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 磁場の強い中性子星のX線観測2018

    • Author(s)
      榎戸輝揚
    • Organizer
      日本SKAパルサー・突発天体研究会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] NICER Observations of highly magnetised neutron stars: Initial results2018

    • Author(s)
      Teruaki Enoto, Zaven Arzoumanian, Keith C. Gendreau, Melania Nynka, Victoria Kaspi, Alice Harding, Tolga Guver, Natalia Lewandowska, Walid Majid, Wynn C.G. Ho, Gaurava K. Jaisawal, and NICER M&M team
    • Organizer
      AAS2018
    • Related Report
      2017 Research-status Report
  • [Presentation] NICER View of Magnetars and Young Pulsars2017

    • Author(s)
      T. Enoto, Z. Arzoumanian, S. Bogdanov, K. Gendreau, T. Guver, A. Harding, W. Ho, V. Kaspi, N. Lewandowska, B. Link, A. Lommen, W. Majid, M. Nynka, T. Okajima, A. Timokhin, C. Venter, K. Wood, and NICER Team
    • Organizer
      16th HEAD meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] NICER Mission on the ISS and Initial Results of Magnetars2017

    • Author(s)
      T. Enoto, Z. Arzoumanian, K. Gendreau, and NICER Science Team
    • Organizer
      中性子星の観測と理論: 研究活性化ワークショップ2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 中性子星の観測的多様性をめぐる最新描像2017

    • Author(s)
      榎戸輝揚
    • Organizer
      第30回理論懇シンポジウム「星の物理の新地平」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Remarks] 榎戸極限自然現象理研白眉研究チーム

    • URL

      http://enotolab.info

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2017-07-21   Modified: 2020-03-30  

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