Recent space missions such as FAST and Freja report highly structured plasma flows along
the magnetic field. Electrostatic fluctuations that can be supported by such inhomogeneous …

Incoherent scatter radars are designed to detect scatter from thermalfluctuations in the
ionosphere. These fluctuations contain, among other things, features associated with ion …

We report direct observations of the three‐dimensional velocity distribution of selected
topside ionospheric ion species in an auroral context between 500 and 550 km altitude. We …

This paper presents a numerical study of the effect of Langmuir turbulence on incoherent
scatter spectra. The Langmuir turbulence is driven by low energy beams of electrons in the …

The optical detection of auroral subarcs a few tens of m wide as well as the direct
observation of shears several m/s per m over km to sub km scales by rocket instrumentation …

Electrostatic ion cyclotron fluctuations driven by combination of a magnetic‐field‐aligned
electron current and a localized transverse electric field in two‐ion‐component plasmas are …

The combined effect of ion‐neutral collisions and strong dc electric fields is known to drive
marked departures from a simple Maxwellian shape in the supersonic ions of the auroral …

Using a general, second-order, nonlocal formalism (Ganguli et al., 1985, 1988, 1994), we
find that multiple Inhomogeneous Energy-Density Driven (IEDD) nonlocal eigenmodes with …

The aurora often breaks down into elongated filaments that are aligned with the
geomagnetic field. It is natural to infer from this that when important structures are found in …

We introduce a new mechanism for ion heating in the plane perpendicular to the magnetic
field lines of a magnetic flux tube. The transverse energization is shown to be contributed by …