首页|Scintillation Arc from FRB 20220912A

Scintillation Arc from FRB 20220912A

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We present the interstellar scintillation analysis of fast radio burst(FRB)20220912A during its extremely active episode in 2022 using 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 ionized inter-stellar medium(IISM)for the localized scattering medium but cannot rule out a host galaxy origin.We present our method for detecting the scintillation arc,which can be applied generally to sources with irregularly spaced bursts or pulses.These methods could help shed light on the complex interstellar environment surrounding the FRBs and in our Galaxy.

fast radio burstscintillationFRB 20220912A

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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National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China

Max-Planck-Institut für Radioastronomie,Bonn 53121,Germany

Institute for Frontier in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China

Nevada Center for Astrophysics and Department of Physics and Astronomy,University of Nevada,Las Vegas,NV 89154,USA

CAS Key Laboratory of FAST,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China

School of Astronomy,University of Chinese Academy of Sciences,Beijing 100049,China

NAOC-UKZN Computational Astrophysics Centre,University of KwaZulu-Natal,Durban 4000,South Africa

Department of Astronomy,Peking University,Beijing 100871,China

Kavli Institute for Astronomy and Astrophysics,Peking University,Beijing 100871,China

Cahill Center for Astmnomy and Astrophysics,California Institute of Technology,Pasadena 91125,USA

South-Western Institute For Astronomy Research,Yunnan University,Kunming 650504,China

School of Astronomy and Space Science,Nanjing University,Nanjing 210093,China

Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University),Ministry of Education,Nanjing 210023,China

CSIRO Space and Astronomy,Epping 1710,Australia

Department of Astronomy,School of Physics and Materials Science,Guangzhou University,Guangzhou 510006,China

Research Center for Intelligent Computing Platforms,Zhejiang Laboratory,Hangzhou 311100,China

Yunnan Observatories,Chinese Academy of Sciences,Kunming 650011,China

Guangxi Key Laborarory for Relativistic Astrophysics,Department of Physics,Guangxi University,Nanning 530004,China

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National SKA Program of ChinaNational SKA Program of ChinaCAS Project for Young Scientists in Basic ResearchNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key R&D Program of ChinaNational Key R&D Program of ChinaNational Key R&D Program of ChinaNational Key R&D Program of ChinaCAS-MPG LEGACY ProjectMax-Planck Partner GroupKey Research Project of Zhejiang LabWestern Light Youth Project of Chinese Academy of SciencesFASTNational Astronomical Observatories,Chinese Academy of Sciences

2020SKA01202002020SKA0120100YSBR-0631204130311988101118330091187306712041304122030452017YFA04026002021YFA07185002017YFA04026022022YFC22052032021PE0AC0

2024

10.1007/s11433-023-2186-2

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(1)
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