7 papers
A Unified Multi-Band Secular Framework for the Hierarchical Triple PSR J0435+3233 System
Achamveedu Gopakumar, Vidit Singh, Abhimanyu Susobhanan +9
The millisecond pulsar PSR J0435+3233, discovered by FAST, exhibits an unusually large apparent spin-down rate, potentially reflecting line-of-sight acceleration from a distant com…
Timing, Polarization, and Single-Pulse Properties of Long-Period FAST Pulsars
Habtamu Menberu Tedila, Shijun Dang, Di Li +5
We present phase-connected timing and polarization measurements for two long-period FAST-CRAFTS pulsars, PSRs J0000+6252 and J2131+3642, and extend single-pulse emission-state anal…
Cross-validation of six dispersion measure estimation methods for FRB 20240114A
Tonglun Wang, Songbo Zhang, Yuanchuan Zou +11
Fast Radio Bursts (FRBs) are important cosmological probes, but their applications depend critically on accurate dispersion measure (DM) determinations. We present a systematic com…
Indication for Decreasing Dispersion Measure in the Population of Repeating Fast Radio Bursts and Connection to Young Supernova Remnant Expansion
Xiang-han Cui, Cheng-min Zhang, Di Li +8
Fast Radio Bursts (FRBs) are millisecond-duration, highly energetic radio transients of uncertain origin. Repeating FRBs provide an excellent population for investigating their nat…
Fast radio bursts, magnetars and earthquakes: their "family feud"?
Si-Lu Xu, Yong-Kun Zhang, Pei Wang +24
Fast radio bursts (FRBs) are millisecond-duration cosmic transients whose origin remains elusive. Competing models invoke either earthquake-like processes or flare-like mechanisms.…
FRTSearch: Unified Detection and Parameter Inference of Fast Radio Transients using Instance Segmentation
Bin Zhang, Yabiao Wang, Xiaoyao Xie +11
The exponential growth of data from modern radio telescopes presents a significant challenge to traditional single-pulse search algorithms, which are computationally intensive and…
Identifying Quasi-Periodic Micropulses in Pulsars with FAST Using Convolutional Neural Networks
Shidong Wang, Hui Liu, Ru-Shuang Zhao +12
Quasi-periodic MicroPulses (QMP) are quasi-periodic microstructural features manifested in individual pulsar radio pulses, the study of which is crucial for understanding pulsar ra…