Particle Dynamics in the Reconnecting Heliospheric Current Sheet: Solar Wind Data versus Three-dimensional Particle-in-cell Simulations

摘要: In this paper, we apply an assumption of the reconnecting heliospheric current sheet (HCS) for explanation some contradictory results in experimental detection sector boundaries (SBs) from interplanetary magnetic field and electron pitch-angle measurements. Trajectories, densities, velocity, distributions particles accelerated by a super-Dreicer electric are investigated with 2.5D full kinetic particle-in-cell approach HCS assumed to undergo slow reconnection process configurations deduced solar wind observations. This reveals that during motion both kinds particles, electrons protons, be separated, either fully or partially, respect its midplane can lead their ejection opposite semiplanes was also observed crossings. separation is found form Hall's currents polarization across sheet, which distribution over sheets allows us reproduce magnitudes temporal profiles proton ion velocities measured SB (current midplane). process, turn, divides on "transit" "bounced" ones depending side where they enter it supposed ejected. The transit bounced protons rather closely proton/ion densities about larger maximum occurring at formed other two smaller maximums sides central one protons. density energy before after boundary crossings fit simulated revealing sharp increase depression side. shown gain energies up ten keV while only few tens eV as often single crossing bump-in-tail leading Langmuir turbulence. responsible increased detected distance (midplane) horse shoe-like medallion- (or locket)-type pitch angles distance, turn away HCS, being dependent magnitude guiding field.