5 research outputs found
Auroral Evidence for Multiple Reconnection in the Magnetospheric Tail Plasma Sheet
We present auroral evidence for multiple and, most probably, small-scale reconnection in the near-Earth magnetospheric plasma sheet current layer during auroral activity. Hall currents as the source of upward and downward field-aligned currents require the generation of the corresponding electron fluxes. The auroral spatial ordering in a multiple sequence of these fluxes requires the assumption of the existence of several —and possibly— even many tailward reconnection sites
On deformation of electron holes in phase space
This Letter shows that for particularly shaped background particle
distributions momentum exchange between phase space holes and the distribution
causes acceleration of the holes along the magnetic field. In the particular
case of a non-symmetric ring distribution (ring with loss cone) this
acceleration is nonuniform in phase space being weaker at larger perpendicular
velocities thus causing deformation of the hole in phase space.Comment: Original MS in EPL style, 1 Figur