The Astrophysical Journal Letters (Jan 2024)
Scintillation Velocity and Arc Observations of FRB 20201124A
- Ziwei Wu,
- Weiwei Zhu,
- Bing Zhang,
- Yi Feng,
- JinLin Han,
- Di Li,
- Dongzi Li,
- Rui Luo,
- Chenhui Niu,
- Jiarui Niu,
- Bojun Wang,
- Fayin Wang,
- Pei Wang,
- Weiyang Wang,
- Heng Xu,
- Yuanpei Yang,
- Yongkun Zhang,
- Dejiang Zhou,
- Yuhao Zhu,
- Can-Min Deng,
- Yonghua Xu,
- FAST FRB Key Science Project
Affiliations
- Ziwei Wu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]
- Weiwei Zhu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; Institute for Frontier in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, People's Republic of China
- Bing Zhang
- ORCiD
- Nevada Center for Astrophysics, University of Nevada , Las Vegas, NV 89154, USA; Department of Physics and Astronomy, University of Nevada , Las Vegas, NV 89154, USA
- Yi Feng
- ORCiD
- Research Center for Astronomical Computing , Zhejiang Laboratory, Hangzhou 311100, People's Republic of China
- JinLin Han
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; School of Astronomy, University of Chinese Academy of Sciences , Beijing, People's Republic of China
- Di Li
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; NAOC-UKZN Computational Astrophysics Centre, University of KwaZulu-Natal , Durban 4000, South Africa; Research Center for Intelligent Computing Platforms , Zhejiang Laboratory, Hangzhou 311100, People's Republic of China
- Dongzi Li
- ORCiD
- Cahill Center for Astronomy and Astrophysics , MC 249-17 California Institute of Technology, Pasadena, CA 91125, USA
- Rui Luo
- ORCiD
- Department of Astronomy, School of Physics and Materials Science, Guangzhou University , Guangzhou 510006, People's Republic of China
- Chenhui Niu
- ORCiD
- Institute of Astrophysics, Central China Normal University , Wuhan 430079, People's Republic of China
- Jiarui Niu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; School of Astronomy, University of Chinese Academy of Sciences , Beijing, People's Republic of China
- Bojun Wang
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]
- Fayin Wang
- ORCiD
- School of Astronomy and Space Science, Nanjing University , Nanjing 210093, People's Republic of China; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210093, People's Republic of China
- Pei Wang
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]
- Weiyang Wang
- ORCiD
- School of Astronomy and Space Science, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
- Heng Xu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]
- Yuanpei Yang
- ORCiD
- South-Western Institute For Astronomy Research, Yunnan University , Yunnan 650504, People's Republic of China
- Yongkun Zhang
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; School of Astronomy, University of Chinese Academy of Sciences , Beijing, People's Republic of China
- Dejiang Zhou
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; School of Astronomy, University of Chinese Academy of Sciences , Beijing, People's Republic of China
- Yuhao Zhu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China ; [email protected], [email protected]; School of Astronomy, University of Chinese Academy of Sciences , Beijing, People's Republic of China
- Can-Min Deng
- ORCiD
- Guangxi Key Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University , Nanning 530004, People's Republic of China
- Yonghua Xu
- ORCiD
- Yunnan Observatories, Chinese Academy of Sciences , Kunming 650011, People's Republic of China
- FAST FRB Key Science Project
- DOI
- https://doi.org/10.3847/2041-8213/ad5979
- Journal volume & issue
-
Vol. 969,
no. 1
p. L23
Abstract
We present the scintillation velocity measurements of FRB 20201124A from the Five-hundred-meter Aperture Spherical radio Telescope observations, which reveal an annual variation. This annual variation is further supported by changes detected in the scintillation arc as observed from the secondary spectrum. We attribute the annual velocity variation to the presence of a moderately anisotropic scattering screen located at a distance of 0.4 ± 0.1 kpc from Earth. Our results prove that the scintillation of this fast radio burst (FRB) is mainly caused by material close to Earth on a Galactic scale. However, scintillation observations of other FRBs may expose their surrounding environment or uncover possible orbital motion if scintillation is caused by materials in their host galaxy.
Keywords
