Concept design of X-ray CubeSats for observing fast spinning neutron stars as coherent GW emitters
| Project/Area Number |
17K18776
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle-, Nuclear-, Astro-physics, and related fields
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| Research Institution | Kyoto University |
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Principal Investigator |
Enoto Teruaki 京都大学, 白眉センター, 特定准教授 (20748123)
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| 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)
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| Research Collaborator |
NAMBU Yohsuke
ITOH Yousuke
TAKAHASHI Hiromitsu
KOJIMA Yasufumi
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| Project Period (FY) |
2017-06-30 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| 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)
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| 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 |
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| 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.
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| 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。
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Report
(3 results)
Research Products
(20 results)
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[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
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[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
Int'l Joint Research / Invited
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