Probability distributions of the induced electric field of the solar wind
نویسندگان
چکیده
[1] The low-frequency induced electric field in the near-Earth interplanetary medium is investigated observationally. These electric field fluctuations are associated with magnetohydrodynamic-scale fluctuations of the magnetic field and plasma velocity. Results of the study, based upon hourly samples with variations computed relative to 4-day means, indicate that the electric field distribution is roughly exponential. More specifically, the electric field distribution is very nearly the one that is obtained from a quasi-normal turbulence model [Milano et al., 2002]. These results may be useful for particle scattering, acceleration, and turbulence.
منابع مشابه
Langmuir Wave Electric Fields Induced by Electron Beams in the Heliosphere
Solar electron beams responsible for type III radio emission generate Langmuir waves as they propagate out from the Sun. The Langmuir waves are observed via in-situ electric field measurements. These Langmuir waves are not smoothly distributed but occur in discrete clumps, commonly attributed to the turbulent nature of the solar wind electron density. Exactly how the density turbulence modulate...
متن کاملStatistical analysis of the dependence of large-scale Birkeland currents on solar wind parameters
The spatial distributions of large-scale fieldaligned Birkeland currents have been derived using magnetic field data obtained from the Iridium constellation of satellites from February 1999 to December 2007. From this database, we selected intervals that had at least 45% overlap in the large-scale currents between successive hours. The consistency in the current distributions is taken to indica...
متن کاملExperimental Study of Heat Transfer around a Cylinder in Presence of Electric Field
In this paper, effects of EHD actuators on hydrodynamic behavior and heat transfer of air flow over a circular cylinder were considered. Pressure and temperature distributions around the cylinder were measured in presence of wire-plate EHD actuators. The Reynolds number based on cylinder diameter (d) were 3500, 7000. Experiments were performed for various configurations. Based on obtained resul...
متن کاملEconomic assessment of renewable power generation based on wind speed and solar radiation in urban regions
Economic evaluation of 12 MW grid-connected wind farms and PV power plants in two regions in Northern Cyprus for electricity generation was investigated. The wind speed, sunshine duration, and solar global radiation characteristics were analyzed using monthly data collected over 17 years (2000-2016) for Girne and nine years (2008-2016) for Lefkoşa, which were measured at various heights. The re...
متن کاملKinetic evolution and acceleration of the solar wind
We investigate the effects of kinetic waveparticle interactions on the solar wind using a global hybrid model. The model follows the evolution of the particle distributions along an inhomogeneous field line under the influence of wave-particle interactions, an ambipolar electric field that is consistent with the particle distributions themselves, and Coulomb collisions. This represents the “fir...
متن کامل