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The magnetar model's energy crisis for a prolific repeating fast radio burst source
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The magnetar model's energy crisis for a prolific repeating fast radio burst source
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Fast radio bursts (FRBs) are widely considered to originate from magnetars that power the explosion through releasing magnetic energy. Active repeating FRBs have been seen to produce hundreds of bursts per hour and can stay active for months, thus may provide stringent constraints on the energy budget of FRBs' central engine. Within a time span of 214 days, we detected 11,553 bursts from the hyper-active FRB 20240114A that reached a peak burst rate of 729 hr$^{-1}$. This is the largest burst sample from any single FRB source, exceeding the cumulative total of all published bursts from all known FRBs to date. Assuming typical values of radio efficiency and beaming factor, the estimated total isotropic burst energy of this source exceeds 86% of the dipolar magnetic energy of a typical magnetar. The total released energy from this source exceeds that of other known repeaters by about one and a half orders of magnitude, yielding the most stringent lower limit of $4.7\times10^{32}$ G cm$^3$ for the magnetar's magnetic moment. The source remained active at the end of this observation campaign. Our findings thus require either the FRB's central magnetar engine's possessing exceptionally high emission efficiency or a more powerful compact object than a typical magnetar.
Forward citations
Cited by 19 Pith papers
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Periodic Emission Frequency Modulation in a Hyperactive Fast Radio Burst
FRB 20240114A shows a ~112-day periodic modulation in central emission frequency with systematic upward drift within each period at >6σ significance.
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FRB20250613A: a remarkable repeating FRB with apparent millisecond-timescale scattering variations
FRB20250613A exhibits millisecond-timescale scattering variations, spectral depolarisation, and RM changes of ~300 rad m^{-2}, consistent with embedding in the dense stellar wind of a Be star binary companion in its l...
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Cross-validation of six dispersion measure estimation methods for FRB 20240114A
Cross-validation of six DM methods on 2874 FRB 20240114A bursts shows morphology-driven scatter and residual second-to-minute apparent DM fluctuations that cannot be real line-of-sight plasma changes.
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High Frequency Wideband Study of FRB 20240114A with the Allen Telescope Array
Wideband observations of FRB 20240114A detect 97 bursts from 900 MHz to 5 GHz but none higher, showing strongly chromatic and band-limited emission with frequency-dependent rate and sub-burst properties.
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Indication for Decreasing Dispersion Measure in the Population of Repeating Fast Radio Bursts and Connection to Young Supernova Remnant Expansion
Among CHIME repeaters with significant DM evolution, decreasing trends outnumber increasing ones (combined p=0.033), supporting young SNR expansion as a common local environment.
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Fast radio bursts, magnetars and earthquakes: their "family feud"?
Repeating FRBs occupy a distinct region in the new Pincus-Lyapunov diagram from magnetar flares and other transients, with a permutation test indicating different trigger mechanisms.
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Beyond dynamic scaling: rare events break universality
Power-law blob deposition yields τ-dependent growth exponents and a second length scale that breaks Family–Vicsek scaling for τ<3.
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FAST Polarization Catalog of FRB 20240114A
A polarization catalog of 6,131 bursts from FRB 20240114A reveals linearly decreasing rotation measure, stable dispersion measure, high linear polarization fractions, low circular polarization, and a broad distributio...
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No Strong Evidence for Plasma Lensing in FRB 20240114A
FAST and Parkes data show misaligned magnification peaks, no bandwidth narrowing, and chance-level carbon-copy pairs, so plasma lensing is not required for FRB 20240114A variability.
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A 4200-hour HyperFlash and \'ECLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts
A 4200-hour campaign on FRB 20240114A finds that the highest-energy bursts account for most of the observed radio energy release, with a break in the energy distribution at ~2×10^40 erg and a linear DM rise of +0.96 p...
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Discovery of 30 Repeating Fast Radio Burst Sources and Uniform Population Statistics of 80 Repeating Sources from CHIME/FRB
CHIME/FRB has now cataloged 80 repeating FRB sources whose burst rates and upper limits are consistent with a power-law distribution implying 50-100% of all FRBs repeat.
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Random Polarization Position Angle Behaviors across Bursts of Repeating Fast Radio Bursts
Polarization position angles of repeating FRBs are Gaussian distributed with no periodicity, arising from geometric projection in a stochastically varying magnetosphere that also explains non-repeating FRBs.
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Random Polarization Position Angle Behaviors across Bursts of Repeating Fast Radio Bursts
Repeating FRBs show Gaussian-distributed intrinsic PAs with no periodicity, explained by stochastic magnetospheric axis wandering in an extended rotating vector model.
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Triaxial Magnetars as Sources of Fast Radio Bursts
Triaxial magnetars explain FRB repetition and duty cycles via collimated emission, rotation, and precessional wandering of the radiation pattern.
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Signatures of Two Distinct Epochs of FRB 20240114A from January to August 2024 Based on its Energy and Waiting Time Analysis
FRB 20240114A shows two epochs with distinct energy distribution indices and waiting time statistics, suggesting different burst types before and after March 21 2024.
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The Role of Scintillation in Detecting HI Absorption in FRB Spectra
Simulations indicate HI absorption in FRB spectra is detectable when scintillation decorrelation bandwidth differs markedly from absorption width, with ≳1000 stacked bursts needed at current sensitivities.
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Indication for Decreasing Dispersion Measure in the Population of Repeating Fast Radio Bursts and Connection to Young Supernova Remnant Expansion
Population-level statistical test on repeating FRB DM evolution finds decreasing trends more common than increasing (p=0.033), consistent with young SNR expansion reducing local electron density.
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Radio Monitoring Campaign of Active Repeater FRB 20220912A with CHIME
FRB 20220912A shows bimodal burst intervals, a 2.3-sigma DM rise of 1.4 pc cm^{-3} yr^{-1}, no RM trend, and possibly unique local environment compared to other repeaters.
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A series of unfortunate events: CHIME/FRB misclassification of a Galactic pulsar as a periodic fast radio burst
A reported periodic fast radio burst is reclassified as Galactic pulsar emission due to CHIME calibration and beam-pointing error.
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