Year: 2024
Type: article
Abstract: Fast radio bursts (FRBs) are short-duration radio transients with mysterious origins. Since their uncertainty, there are very few FRBs observed by different instruments simultaneously. This study presents a detailed analysis of a burst from FRB 20190520B observed by FAST and Parkes at the same time. The spectrum of this individual burst ended at the upper limit of the FAST frequency band and was simultaneously detected by the Parkes telescope in the 1.5–1.8 GHz range. By employing spectral energy distribution (SED) and spectral sharpness methods, we confirmed the presence of narrow-band radiation in FRB 20190520B, which is crucial for understanding its radiation mechanisms. Our findings support the narrow-band characteristics that most repeaters exhibit. This work also highlights the necessity of continued multiband observations to explore its periodicity and frequency-dependent properties, contributing to an in-depth understanding of FRB phenomena.
Source: Chinese Physics Letters
Authors: Yuhao 禹豪 Zhu 朱, Chenhui 晨辉 Niu 牛, Shi 实 Dai 代, Di 菂 Li 李, Pei 培 Wang 王, Yi 毅 Feng 冯, Jingwen 京文 Wu 吴, Yongkun 永坤 Zhang 张, Xianghan 翔翰 Cui 崔, Junshuo 钧硕 Zhang 张, Jinhuang 锦煌 Cao 曹
Institutions: Chinese Academy of Sciences, National Astronomical Observatories, University of Chinese Academy of Sciences, Central China Normal University, Western Sydney University, Tsinghua University, Beijing Normal University, Zhejiang Lab, Zhejiang University, Curtin University, International Centre for Radio Astronomy Research
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4402075586