C. Gurgiolo

TL;DR: In this paper, an electron analyser was used to measure the three-dimensional velocity distribution of electrons in the energy range from 0.59 eV to 26.4 keV on the four spacecraft of the Cluster mission.

TL;DR: De-1 hot plasma observations in the mid-altitude polar cusp have shown evidence of a significant velocity filtering phenomenon which is consistent with a latitudinally narrow region of plasma injection located at a geocentric distance of about eight earth radii (in a dipole approximation) as mentioned in this paper.

TL;DR: The three-dimensional positive ion analyzer aboard the Giotto spacecraft has been used to study the interaction between protons and alpha-particles in the solar wind and positive ions from comet Halley as discussed by the authors.

TL;DR: In this paper, the authors present results from Dynamics Explorer 2 (DE-2) which confirm the experimental results of winningham and Heikkila (1974) and show that the earth's polar caps act much like any conductor immersed in a plasma and illuminated by sunlight.

TL;DR: In this article, the solar wind interaction with the outflowing gas from a second comet has been recorded by the same in-situ instrumentation that was used for the comet Halley encounter in 1986.