The DM distribution of unlocalized FRBs yields H0 = 73.8 +14.0/-12.3 km/s/Mpc with 18% uncertainty.
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A bright millisecond radio burst of extragalactic origin
Mixed citation behavior. Most common role is background (67%).
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67% of classified citations
abstract
Pulsar surveys offer one of the few opportunities to monitor even a small fraction (~0.00001) of the radio sky for impulsive burst-like events with millisecond durations. In analysis of archival survey data, we have discovered a 30-Jy dispersed burst of duration <5 ms located three degrees from the Small Magellanic Cloud. The burst properties argue against a physical association with our Galaxy or the Small Magellanic Cloud. Current models for the free electron content in the Universe imply a distance to the burst of <1 Gpc No further bursts are seen in 90-hr of additional observations, implying that it was a singular event such as a supernova or coalescence of relativistic objects. Hundreds of similar events could occur every day and act as insightful cosmological probes.
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representative citing papers
Relativistic single-particle scattering cross sections for strong electromagnetic waves in strongly magnetized plasma are computed for arbitrary polarization and angle, showing strong suppression and sub-unity optical depth for quasi-parallel propagation.
Kilohertz gravitational waves from a neutron star merger convert to electromagnetic waves near a magnetar via the Gertsenshtein-Zeldovich effect and are inverse Compton scattered to gigahertz frequencies to explain the associated fast radio burst.
Strong EM waves in pair plasmas are governed by nonlinearity parameter ε_p, producing attenuation over ε_p^{-2/3} wavelengths when small and shock formation when large.
Nonlinear Alfven waves with k near k0 in highly magnetized pair plasmas experience strong modulational instability that drives density fluctuations and generates high-frequency modes.
Constrains SNR parameters for FRB 190520B using DM and scattering, retaining 6 cases with young age (80-170 yr) and shallow ejecta that fit the data.
An MCMC-based period search method recovers previously reported candidate periods in FRB 20201124A observations.
Nonlinear relativistic EM waves in magnetized plasmas show modified dispersion relations where subluminal modes terminate at finite frequency when wave electric field exceeds guide field B0, preventing further propagation.
FRB dispersion measures combined with non-parametric H(z) reconstruction yield Ω_b h² = 0.02236 ± 0.00090, agreeing with BBN and Planck CMB to within 0.05%.
A 9-hour FAST observation covering ~4230 GCs in M49 found no FRBs and sets an upper limit of 4.7e-4 FRB GC^-1 hr^-1 above ~16.5 mJy ms fluence.
Analysis of CHIME/FRB Catalog 2 with synthetic injections and a multidimensional selection function yields evidence for a slight downturn in the intrinsic scattering timescale distribution, though flat or rising distributions remain possible.
LAMBDA proposes megameter-scale baselines using additional Australian stations to extend SKA-Low for high-resolution low-frequency VLBI.
PATH is extended with three fitted P(m_r|z) prior models combined with P(z|DM), raising host-association confidence for ASKAP FRBs while showing fainter-than-expected host magnitude distribution.
z-DM modeling of multiple FRB surveys constrains minimum burst energy to log E_min = 39.49^{+0.39}_{-1.48} erg and predicts 25-41% of FAST FRBs at z ≳ 2.
Gravitational vacuum polarization explains the Hubble tension by increasing direct H0 measurements while leaving indirect ones unaffected, does not impact the sigma8 tension, and predicts FRB measurements match CMB/BAO values.
FRBs serve as cosmological probes via dispersion measure, scattering, and Faraday rotation to constrain baryon distribution, expansion history, magnetic fields, and fundamental physics effects.
A reported periodic fast radio burst is reclassified as Galactic pulsar emission due to CHIME calibration and beam-pointing error.
The Arecibo telescope advanced radio astronomy via serendipitous discoveries and successive upgrades to its reflector, optics, receivers, and data systems over its operational lifetime.
Review summarizing observational data on the Milky Way's magnetic field structure, including spiral alignment, halo components, turbulence, and correlations with interstellar gas and dust.
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