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エディントン光度を超える降着型コンパクト天体の系統的研究

Research Project

Project/Area Number 18F18318
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Review Section Basic Section 16010:Astronomy-related
Research InstitutionKyoto University

Principal Investigator

上田 佳宏  京都大学, 理学研究科, 准教授 (10290876)

Co-Investigator(Kenkyū-buntansha) HU CHIN-PING  京都大学, 理学(系)研究科(研究院), 外国人特別研究員
Project Period (FY) 2018-11-09 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2020: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2019: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2018: ¥500,000 (Direct Cost: ¥500,000)
Keywords中性子星 / 超臨界降着
Outline of Annual Research Achievements

During the last fiscal year, Dr. Hu participated in the NICER Magnetar and Magnetosphere group and contributed to several works, including the discovery of a new radio-emitting magnetar, Swift J1818.0-1627, which hints at an important link between magnetars and high-magnetic-field rotation-powered pulsar. Follow-up observations using radio telescopes are ongoing. As for the accreting compact objects, Drs. Hu and Ueda have discovered periodic dips in a pulsating ULX, M51 ULX-7. This unique property among pulsating ULXs implies a high inclination angle that disfavors the strong-beaming scenario. The result provides an important hint for magnetospheric accretion and suggests a high magnetic field of ULX-7. Moreover, a few interesting sources are discovered by the semi-automatic timing algorithm developed during Dr. Hu's JSPS tenure. They will be deeply investigated in the future.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (13 results)

All 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Possible Periodic Dips in the Pulsating Ultraluminous X-Ray Source M51 ULX-72021

    • Author(s)
      Hu, C.-P., Ueda, Y., and Enoto, T.
    • Journal Title

      The Astrophysical Journal

      Volume: 909 Issue: 1 Pages: 5-5

    • DOI

      10.3847/1538-4357/abd7a5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Multiwavelength Study of the γ-Ray Binary Candidate HESS J1832-0932020

    • Author(s)
      Tam, P.-H. T., (Hu, C.-P.) et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 899 Issue: 1 Pages: 75-75

    • DOI

      10.3847/1538-4357/ab9e76

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Multiwavelength Study of PSR J1119-6127 after 2016 Outburst2020

    • Author(s)
      Wang, H.-H., (Hu, C.-P.) et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 902 Issue: 2 Pages: 96-96

    • DOI

      10.3847/1538-4357/abb3c4

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] NICER Observation of the Temporal and Spectral Evolution of Swift J1818.0-1607: A Missing Link between Magnetars and Rotation-powered Pulsars2020

    • Author(s)
      Hu, C.-P., et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 902 Issue: 1 Pages: 1-1

    • DOI

      10.3847/1538-4357/abb3c9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Repeated state change of variable gamma-ray pulsar, PSR J2021+40262020

    • Author(s)
      Takata, J., Wang, H. H., Lin, L. C. C., Hu, C.-P., Hui, C. Y., et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 890 Issue: 1 Pages: 16-16

    • DOI

      10.3847/1538-4357/ab67b1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Investigation of X-ray timing and spectral properties of ESO 243-49 HLX-1 with long-term Swift Monitoring2020

    • Author(s)
      Lin, L. C. C., Hu, C.-P., Li, K. L., Takata, J., Yen, D. C.-C., et al.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 491 Issue: 4 Pages: 5682-5692

    • DOI

      10.1093/mnras/stz3372

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Monitoring the Superorbital Period Variation and Spin Period Evolution of SMC X-12019

    • Author(s)
      Hu, C.-P., Mihara, T., Sugizaki, M., Ueda, Y., and Enoto, T.
    • Journal Title

      The Astrophysical Journal

      Volume: 885 Issue: 2 Pages: 123-123

    • DOI

      10.3847/1538-4357/ab48e4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An optical and X-ray study of the contact binary, BH Cassiopeia2019

    • Author(s)
      Liu, J., Esamdin, A., Zhang, Y., Hu, C.-P., Chen, T., et al.
    • Journal Title

      Publications of the Astronomical Society of the Pacific

      Volume: 101 Issue: 1002 Pages: 084202-084202

    • DOI

      10.1088/1538-3873/ab247a

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A systematic study of soft X-ray pulse profiles of magnetars in quiescence2019

    • Author(s)
      Hu, Chin-Ping, Ng, C.-Y., and Ho, W. C. G.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 485 Issue: 3 Pages: 4274-4286

    • DOI

      10.1093/mnras/stz513

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Connection between Radiative Outbursts and Timing Irregularities in Magnetars2019

    • Author(s)
      Hu, Chin-Ping and Ng, C.-Y.
    • Journal Title

      Astronomische Nachrichten

      Volume: - Issue: 4 Pages: 340-345

    • DOI

      10.1002/asna.201913621

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Tracking the Superorbital Period Excursionand the Spin Period Evolution of SMC X-12019

    • Author(s)
      Hu, C.-P. et al.
    • Organizer
      The Future of X-ray Timing
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On the Connection between Spin Period Evolution and Superorbital Period Excursion of SMC X-12019

    • Author(s)
      Hu, C.-P. et al.
    • Organizer
      2019 ASROC Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tracking the Spin Period Evolution of Accretion-Powered Pulsars2019

    • Author(s)
      Hu, Chin-Ping
    • Organizer
      中性子星の観測と理論
    • Related Report
      2018 Annual Research Report
    • Invited

URL: 

Published: 2018-11-12   Modified: 2024-03-26  

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