The arrival time and energy of FRBs traverse the time-energy bivariate space like a Brownian motion

Abstract

The origin of fast radio bursts (FRBs), the brightest cosmic explosion in radio bands, remains unknown. We introduce here a novel method for a comprehensive analysis of active FRBs' behaviors in the time-energy domain. Using ``Pincus Index'' and ``Maximum Lyapunov Exponent'', we were able to quantify the randomness and chaoticity, respectively, of the bursting events and put FRBs in the context of common transient physical phenomena, such as pulsar, earthquakes, and solar flares. In the bivariate time-energy domain, repeated FRB bursts' behaviors deviate significantly (more random, less chaotic) from pulsars, earthquakes, and solar flares. The waiting times between FRB bursts and the corresponding energy changes exhibit no correlation and remain unpredictable, suggesting that the emission of FRBs does not exhibit the time and energy clustering observed in seismic events. The pronounced stochasticity may arise from a singular source with high entropy or the combination of diverse emission mechanisms/sites. Consequently, our methodology serves as a pragmatic tool for illustrating the congruities and distinctions among diverse physical processes.

8 pages, 6 figures, accepted for publication in Science Bulletin

References in corpus (28)

• A bright millisecond radio burst of extragalactic origin
• The direct localization of a fast radio burst and its host
• A fast radio burst associated with a Galactic magnetar
• A bright millisecond-duration radio burst from a Galactic magnetar
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
• A repeating fast radio burst associated with a persistent radio source
• A bimodal burst energy distribution of a repeating fast radio burst source
• The Physics of Fast Radio Bursts
• A fast radio burst source at a complex magnetised site in a barred galaxy
• Repeating behaviour of FRB 121102: periodicity, waiting times and energy distribution
• A "Cosmic Comb" Model of Fast Radio Bursts
• Frequency-dependent polarization of repeating fast radio bursts-implications for their origin
• Repeating Fast Radio Bursts from Magnetars with Low Magnetospheric Twist
• Magnetic field reversal in the turbulent environment around a repeating fast radio burst
• Periodicity in recurrent fast radio bursts and the origin of ultra long period magnetars
• Theory of Earthquake Recurrence Times
• On the influence of time and space correlations on the next earthquake magnitude
• Fast radio bursts and their high-energy counterpart from magnetar magnetospheres
• FAST observations of an extremely active episode of FRB 20201124A: II. Energy Distribution
• Arecibo observations of a burst storm from FRB 20121102A in 2016
• The FRB 20121102A November rain in 2018 observed with the Arecibo Telescope
• Faraday depolarization and induced circular polarization by multi-path propagation with application to FRBs
• A Magnetar-Asteroid Impact Model for FRB 200428 Associated with an X-ray Burst from SGR 1935+2154
• Planning the scientific applications of the Five-hundred-meter Aperture Spherical radio Telescope
• Fast radio bursts trigger aftershocks resembling earthquakes, but not solar flares
• Repeating fast radio bursts reveal memory from minutes to an hour
• Empirical Assessment of Aperiodic and Periodic Radio Bursts from Young Precessing Magnetars

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