Results 31 to 40 of about 2,348 (257)

Solving the Mystery of Fast Radio Bursts: A Detective’s Approach

open access: yesUniverse, 2023
Fast radio bursts (FRBs) are still a mystery in contemporary astrophysics. Unlike many other astronomical objects whose basic physical mechanism is already identified and the research on which focuses mainly on refining details, FRBs are still largely ...
Bing Zhang
doaj   +1 more source

Verifying and reporting Fast Radio Bursts [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Fast Radio Bursts (FRBs) are a class of short-duration transients at radio wavelengths with inferred astrophysical origin. The prototypical FRB is a broadband signal that occurs over the extent of the receiver frequency range, is narrow in time, and is highly dispersed, following a v(-2) relation.
Griffin Foster   +8 more
openaire   +3 more sources

A possible subclassification of fast radio bursts

open access: yesJournal of Cosmology and Astroparticle Physics, 2022
AbstractAlthough fast radio bursts (FRBs) have been an active field in astronomy and cosmology, their origin is still unknown to date. One of the interesting topics is the classification of FRBs, which is closely related to the origin of FRBs. Different physical mechanisms are required by different classes of FRBs. In the literature, they usually could
Guo, Han-Yue, Wei, Hao
openaire   +2 more sources

Coronal mass ejections, type II radio bursts, and solar energetic particle events in the SOHO era [PDF]

open access: yesAnnales Geophysicae, 2008
Using the extensive and uniform data on coronal mass ejections (CMEs), solar energetic particle (SEP) events, and type II radio bursts during the SOHO era, we discuss how the CME properties such as speed, width and solar-source longitude decide ...
N. Gopalswamy   +7 more
doaj   +1 more source

The Euclidean distribution of fast radio bursts [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
We investigate whether current data on the distribution of observed flux densities of Fast Radio Bursts (FRBs) are consistent with a constant source density in Euclidean space. We use the number of FRBs detected in two surveys with different characteristics along with the observed signal-to-noise ratios of the detected FRBs in a formalism similar to a ...
Oppermann, Niels   +2 more
openaire   +2 more sources

On the Origin of Fast Radio Bursts (FRBs) [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract We derive stringent constraints on the persistent source associated with FRB 121102: size , age year, energy erg, characteristic ...
openaire   +2 more sources

Simultaneous Multiwavelength Observations of the Repeating Fast Radio Burst FRB 20190520B with Swift and FAST

open access: yesThe Astrophysical Journal
Among several dozen known repeating fast radio bursts, those precisely localized offer the best opportunities to explore their multiwavelength counterparts, which are key to uncovering their origins.
Zhen Yan   +10 more
doaj   +1 more source

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif   +17 more
wiley   +1 more source

Fast Radio Bursts and Interstellar Objects

open access: yesThe Astrophysical Journal
Fast radio bursts (FRBs) are transient radio events with millisecond-scale durations and debated origins. Collisions between planetesimals and neutron stars (NSs) have been proposed as a mechanism to produce FRBs; the planetesimal strength, size, and ...
Dang Pham   +4 more
doaj   +1 more source

The Statistical Polarization Properties of Coherent Curvature Radiation by Bunches: Application to Fast Radio Burst Repeaters

open access: yesThe Astrophysical Journal, 2023
Fast radio bursts (FRBs) are extragalactic radio transients with a millisecond duration and an extremely high brightness temperature. Very recently, some highly circularly polarized bursts were found in a repeater, FRB 20201124A. The significant circular
Ze-Nan Liu   +3 more
doaj   +1 more source

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