A narrowband burst from FRB 20190520B simultaneously observed by FAST and Parkes

Abstract

Fast Radio Bursts (FRBs) are short-duration radio transients with mysterious origins. Since its uncertainty, there are very few FRBs that are 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 narrowband radiation in FRB 20190520B, which is crucial for understanding its radiation mechanisms. Our findings support the narrowband 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.

8 pages, 6 figures, published by Chinese Phys. Lett

References in corpus (25)

• A bright millisecond radio burst of extragalactic origin
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• Fast Radio Bursts
• The First CHIME/FRB Fast Radio Burst Catalog
• The Physical Mechanisms of Fast Radio Bursts
• A Second Source of Repeating Fast Radio Bursts
• A repeating fast radio burst associated with a persistent radio source
• LOFAR Detection of 110-188 MHz Emission and Frequency-Dependent Activity from FRB 20180916B
• Frequency-dependent polarization of repeating fast radio bursts-implications for their origin
• Magnetospheric curvature radiation by bunches as emission mechanism for repeating fast radio bursts
• Energy functions of fast radio bursts derived from the first CHIME/FRB catalogue
• The Large Dispersion and Scattering of FRB 20190520B are Dominated by the Host Galaxy
• No redshift evolution of non-repeating fast radio-burst rates
• On the Fast Radio Burst and Persistent Radio Source Populations
• Spectropolarimetric variability in the repeating fast radio burst source FRB 20180301A
• Circular Polarization in two Active Repeating Fast Radio Bursts
• Scattering variability detected from the circumsource medium of FRB 20190520B
• High frequency study of FRB 20180916B using the 100-m Effelsberg radio telescope
• Multiband Detection of Repeating FRB 20180916B
• Narrow spectra of repeating fast radio bursts: A magnetospheric origin
• Non-detection of CHIME/FRB sources with the Arecibo Observatory
• The Environment and Constraints on the Mass of FRB 190520B
• Comparison of Burst Properties between FRB 20190520B and FRB 20121102A
• Do Multi-Structural One-Off FRBs Trace Similar Cosmology History with Repeaters?

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• A Practical Framework for Estimating the Repetition Likelihood of Fast Radio Bursts from Spectral Morphology
• Flux Variations of Fast Radio Bursts and Their Persistent Radio Sources: Evidence for a Shared Progenitor