| Scintillation Arc from FRB 20220912A |
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| 作者姓名： | Zi-Wei Wu Robert A.Main Wei-Wei Zhu Bing Zhang Peng Jiang Jia-Rui Niu Jin-Lin Han Di Li Ke-Jia Lee Dong-Zi Li Yuan-Pei Yang Fa-Yin Wang Rui Luo Pei Wang Chen-Hui Niu Heng Xu Bo-Jun Wang Wei-Yang Wang Yong-Kun Zhang Yi Feng De-Jiang Zhou Yong-Hua Xu Can-Min Deng Yu-Hao Zhu |
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| 作者单位： | 1. National Astronomical Observatories, Chinese Academy of Sciences;2. Max-Planck-Institut für Radioastronomie;3. Institute for Frontier in Astronomy and Astrophysics, Beijing Normal University;4. Nevada Center for Astrophysics and Department of Physics and Astronomy, University of Nevada;5. CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences;6. School of Astronomy, University of Chinese Academy of Sciences;7. NAOC-UKZN Computational Astrophysics Centre, University of Kwa Zulu-Natal;8. Department of Astronomy, Peking University;9. Kavli Institute for Astronomy and Astrophysics, Peking University;10. Cahill Center for Astronomy and Astrophysics, California Institute of Technology;11. South-Western Institute For Astronomy Research, Yunnan University;13. Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education;15. Department of Astronomy, School of Physics and Materials Science, Guangzhou University;17. Yunnan Observatories, Chinese Academy of Sciences;18. Guangxi Key Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University |
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| 基金项目： | the National Natural Science Foundation of China (Grant Nos. 12041303, 11988101, 11833009,11873067, 12041304, and 12203045)；;the National Key R&D Program of China (Grant Nos. 2017YFA0402600, 2021YFA0718500, 2017YFA0402602；;the Max-Planck Partner Group,the Key Research Project of Zhejiang Lab (Grant No.2021PE0AC0)； |
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| 摘 要： | We present the interstellar scintillation analysis of fast radio burst(FRB) 20220912A during its extremely active episode in 2022using data from the Five-hundred-meter Aperture Spherical Radio Telescope(FAST). We detect a scintillation arc in the FRB’s secondary spectrum, which describes the power in terms of the scattered FRB signals’ time delay and Doppler shift. The arc indicates that the scintillation is caused by a highly localized region. Our analysis favors a Milky Way origin of the ioniz...
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