2020 Fiscal Year Annual Research Report
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
| Project/Area Number |
18F18318
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| Research Institution | Kyoto University |
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Principal Investigator |
上田 佳宏 京都大学, 理学研究科, 准教授 (10290876)
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| 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
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| Project Period (FY) |
2018-11-09 – 2021-03-31
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| Keywords | 中性子星 / 超臨界降着 |
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| 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.
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| Research Progress Status |
令和2年度が最終年度であるため、記入しない。
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| 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。
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