Prediction of Multi-Wavelength Afterglows Associated with FRB 20200120E and FRB 20201124A

Abstract

Fast radio bursts (FRBs) are mysterious radio transients with uncertain origins and environments. Recent studies suggest that some active FRBs may originate from compact objects in binary systems. In this work, we develop a unified theoretical framework to model the multi-wavelength afterglows of FRBs resided in binary systems and apply it to two representative repeaters, FRB 20200120E and FRB 20201124A. By solving the dynamics and radiation processes of FRB ejecta interacting with the surrounding medium, we compute afterglow light curves in the radio, optical, and X-ray bands. Our results show that radio afterglows offer the best prospects for detection, with their brightness highly sensitive to ejecta kinetic energy and ambient density. Future high-sensitivity radio telescopes, such as the Square Kilometre Array (SKA), could detect these signals. Optical afterglows, though short-lived and challenging to observe, may be significantly enhanced in dense environments, potentially making them detectable with facilities like the Large Synoptic Survey Telescope (LSST). In contrast, X-ray afterglows are predicted to be too faint for detection with current instruments. Our study highlights the potential of multi-wavelength afterglows as probes of FRB progenitors and their surrounding environments, offering crucial insights into the nature of these mysterious transients.

21 pages, 18 figures, published in ApJ

References in corpus (26)

• A bright millisecond radio burst of extragalactic origin
• Fast Radio Bursts
• Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves
• The Physical Mechanisms of Fast Radio Bursts
• A bimodal burst energy distribution of a repeating fast radio burst source
• The Physics of Fast Radio Bursts
• A nearby repeating fast radio burst in the direction of M81
• A fast radio burst source at a complex magnetised site in a barred galaxy
• Implications of a "Fast Radio Burst" from a Galactic Magnetar
• The Physics of Fast Radio Bursts
• Magnetic field reversal in the turbulent environment around a repeating fast radio burst
• Periodic Fast Radio Bursts from Luminous X-ray Binaries
• Repeating fast radio burst 20201124A originates from a magnetar/Be star binary
• FAST observations of an extremely active episode of FRB 20201124A: II. Energy Distribution
• Fast Radio Bursts from Interacting Binary Neutron Star Systems
• Blinkverse: A Database of Fast Radio Bursts
• MCAO near-IR photometry of the Globular Cluster NGC 6388: MAD observations in crowded fields
• Periodic Fast Radio Bursts as a Probe of Extragalactic Asteroid Belts
• Periodic Activities of Repeating Fast Radio Bursts from Be/X-ray Binary Systems
• Multi-wavelength afterglows of fast radio bursts
• A Highly Variable Magnetized Environment in a Pulsar Binary resembling Fast Radio Bursts
• Rotation Measure Variations and Reversals of Repeating Fast Radio Bursts in Massive Binary Systems
• Multiwavelength observations of Fast Radio Bursts
• The discovery and significance of fast radio bursts
• Expectations for Fast Radio Bursts in Neutron Star-Massive Star binaries
• Testing afterglow models of FRB 200428 with early post-burst observations of SGR 1935+2154