Duration of Individual Relativistic Electron Microbursts: A Probe Into Their Scattering Mechanism
Mykhaylo Shumko, Lauren Blum, A. B. Crew
Abstract
Abstract We used the Solar Anomalous and Magnetospheric Particle Explorer to identify and quantify the duration of relativistic, MeV, electron microbursts. A typical relativistic microburst has a millisecond (ms) duration, and the interquartile range of the duration distribution is 70–140 ms. We investigated trends in the microburst duration as a function of geomagnetic activity, L‐shell, and magnetic local time (MLT). The clearest trend is in MLT: the median microburst duration doubles from 75 milliseconds at midnight to 140 milliseconds noon MLT. This trend is similar to the whistler mode chorus rising tone element duration trend, suggesting a possible relationship.
Topics & Concepts
MicroburstPhysicsNoonVan Allen radiation beltDuration (music)AstrophysicsEarth's magnetic fieldElectronRange (aeronautics)WhistlerAtmospheric sciencesMagnetosphereMeteorologyNuclear physicsMagnetic fieldQuantum mechanicsPlasmaWind speedComposite materialWind shearAcousticsMaterials scienceIonosphere and magnetosphere dynamicsEarthquake Detection and AnalysisSolar and Space Plasma Dynamics