7 papers
Propagation Diagnostics of Supernova Remnant Environments around Young Repeating FRBs. I. Hydrodynamic Evolution of the Source-Local Dispersion Measure
Xiang-Er Fang, Zhen-Yin Zhao, Yi-Qing Lin +2
Repeating fast radio bursts may reside in young supernova remnant (SNR) environments whose evolving plasma contributes to the observed dispersion measure (DM). We use two-dimension…
AU or pc? Inferring the distance of magnetized plasma near FRBs from propagation diagnostics
Wanjin Lu, Dongzi Li, Zhenyin Zhao +1
Fast Radio Bursts (FRBs) are highly energetic, millisecond-duration radio transients. A significant fraction of repeating FRBs are found in magneto-active environments significantl…
Periodic Emission Frequency Modulation in a Hyperactive Fast Radio Burst
Rui-Nan Li, Hao-Tian Lan, Zhen-Yin Zhao +3
Fast radio bursts (FRBs) are intense, short-duration radio transients of mysterious origin. They have been detected across a wide range of frequencies from 110 MHz to 8 GHz. Their…
Two Periodic Activity Epochs in FRB 20201124A: Coincident with Critical RM Evolution Epochs and Its Implications
Wen-Long Zhang, Chen-Ran Hu, Chen Du +12
Recent observations of the repeating fast radio burst FRB 20201124A by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) revealed a second-scale periodic modulation…
Identification of 4876 Bent-Tail Radio Galaxies in the FIRST Survey Using Deep Learning Combined with Visual Inspection
Baoqiang Lao, Heinz Andernach, Xiaolong Yang +6
Bent-tail radio galaxies (BTRGs) are characterized by bent radio lobes. This unique shape is mainly caused by the movement of the galaxy within a cluster, during which the radio je…
Structure Functions of Rotation Measures Revealing the Origin of Fast Radio Bursts
Rui-Nan Li, Zhen-Yin Zhao, Qin Wu +2
The structure function (SF) analysis is a powerful tool for studying plasma turbulence. Theoretically, the SF of Faraday rotation measure (RM) is expected to include a geometric co…