A fast radio burst source at a complex magnetized site in a barred galaxy

Xu, Heng; Niu, Jiarui; Chen, P.; Lee, K. J.; Zhu, Weiwei; Dong, Subo; Zhang, Bing; Jiang, Jiancheng; Wang, B. J.; Xu, Jiawei; Zhang, C. F.; Fu, Hai; Filippenko, A. V.; Peng, Eric W.; Zhou, D. J.; Zhang, Y. K.; Wang, P.; Feng, Yi; Li, Y.; Brink, Thomas G.; Li, Dongzi; Lu, W.; Yang, Yuan-Pei; Caballero, R. N.; Cai, C.; Chen, M. Z.; Dai, Z. G.; Djorgovski, S. G.; Esamdin, Ali; Gan, Hengqian; Guhathakurta, Puragra; Han, J. L.; Hao, Longfei; Huang, Yaohuan; Jiang, Peng; Li, Cheng-Kui; Li, Di; Li, H.; Li, X. Q.; Li, Z. X.; Liu, Z. Y.; Luo, Rui; Men, Yunpeng; Niu, Chenhui; Peng, W. X.; Qian, Lei; Song, Liming; Stern, Daniel; Stockton, Alan; Sun, Jinghai; Wang, F. Y.; Wang, Ming; Wang, Na; Wang, W. Y.; Wu, Xue-Feng; Xiao, Shuo; Xiong, S. L.; Xu, Yang; Xu, R. X.; Yang, Jun; Xue, Yang; Yao, Rui; Yi, Q. B.; Yue, Youling; Yu, Dongjun; Yu, Wenfei; Yuan, Jianping; Zhang, Bin-Bin; Zhang, S. B.; Zhang, Shuang‐Nan; Zhao, Yi; Zheng, Wei; Zhu, Yongchun; Zou, Jin-Hang

doi:10.1038/s41586-022-05071-8

Cited by 105 publications

(166 citation statements)

References 96 publications

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“…Therefore, bursts with highly CP are hardly observed since the flux is too low. Some bursts with significant CP fraction can be as high as 75% (Xu et al 2022), and a small fraction of the bursts have CP fraction higher than 70% (Jiang et al 2022). It is suggested that The CP fraction as a function of the angle between LOS and the trajectory plane.…”

Section: The Cp-flux Propertiesmentioning

confidence: 99%

“…The profiles have been predicted by the rotating vector model (Radhakrishnan & Cooke 1969). A significant circular polarization (CP) was observed in an FRB repeater, FRB 20201124A Kumar et al 2022;Xu et al 2022;Jiang et al 2022). A burst with a significant CP fraction can be as high as 47% (Kumar et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…A burst with a significant CP fraction can be as high as 47% (Kumar et al 2022). Surprisingly, the CP fraction can be up to 75% found in a good fraction of bursts (Xu et al 2022). Very recently, Jiang et al (2022) reported most of the bursts with a low CP degree and a small part of bursts have a CP fraction higher than 70%.…”

Section: Introductionmentioning

confidence: 99%

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The Statistical Polarization Properties of Coherent Curvature Radiation by Bunches: Application to Fast Radio Burst Repeaters

Liu

Wang

Yang

et al. 2023

ApJ

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Fast radio bursts (FRBs) are extragalactic radio transients with a millisecond duration and an extremely high brightness temperature. Very recently, some highly circularly polarized bursts were found in a repeater, FRB 20201124A. The significant circular polarization might be produced by coherent curvature radiation by bunches with the line of sight (LOS) deviating from the bunch central trajectories. In this work, we carry out simulations to study the statistical properties of burst polarization within the framework of coherent curvature radiation by charged bunches in the neutron star magnetosphere for repeating FRBs. The flux is almost constant within the opening angle of the bunch. However, when the LOS derives from the bunch opening angle, the larger the derivation, the larger the circular polarization but the lower the flux. We investigate the statistical distribution of circular polarization and flux of radio bursts from an FRB repeater, and find that most of the bursts with high circular polarization have a relatively low flux. Besides, we find that most of the depolarization degrees of bursts have a small variation in a wide frequency band. Furthermore, we simulate the polarization angle (PA) evolution and find that most bursts show a flat PA evolution within the burst phases, and some bursts present a swing of the PA.

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Section: The Cp-flux Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Statistical Polarization Properties of Coherent Curvature Radiation by Bunches: Application to Fast Radio Burst Repeaters

Liu

Wang

Yang

et al. 2023

ApJ

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“…The WTs are the time intervals between two adjacent (detected) bursts measured during periods of continuous observation. Up until now, the most active repeaters are FRBs 20121102A (e.g., Li et al 2021b), 20180916B (e.g., CHIME/FRB Collaboration et al 2020), and 20201124A (e.g., Xu et al 2022). As shown in the top three panels of Figure 5, the distributions of WTs for three active repeating FRBs have different features, i.e., a bimodal structure for FRB 20121102A, and unimodal structures for FRBs 20180916B and 20201124A.…”

Section: Subpopulationsmentioning

confidence: 99%

One-off and Repeating Fast Radio Bursts: A Statistical Analysis

Chen

2022

ApJ

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According to the number of detected bursts, fast radio bursts (FRBs) can be classified into two categories, i.e., one-off FRBs and repeating ones. We make a statistical comparison of these two categories based on the first FRB catalog of the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst Project. Using the Anderson–Darling, Kolmogorov–Smirnov, and Energy statistic tests, we find significant statistical differences (p-value < 0.001) in the burst properties between the one-off FRBs and the repeating ones. More specifically, after controlling for distance, we find that the peak luminosities of one-off FRBs are, on average, higher than the repeating ones; the pulse temporal widths of repeating FRBs are, on average, longer than the one-off ones. The differences indicate that these two categories could have distinct physical origins. Moreover, we discuss the subpopulations of FRBs and provide statistical evidence to support the existence of subpopulations in one-off FRBs and in repeating ones.

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“…The detection of microstructure in bursts from FRB 20200120E (Majid et al 2021;Nimmo et al 2022), together with its association with a globular cluster of M81 (Kirsten et al 2022), suggest an origin in a recycled pulsar system. Despite its origin in an inter-arm region of its late-type host galaxy (Xu et al 2022), FRB 20201124A illuminates extreme variability of its sub-AU magneto-ionic environment, suggestive of a magnetar/Be-star binary (Wang et al 2022). Such observational diversity among the small sample of just eight localized sources motivates the characterization of a larger sample of host galaxies and environments of repeating FRBs.…”

Section: Introductionmentioning

confidence: 99%