Rocket measurement of auroral electron fluxes associated with field-aligned currents

Pazich, P. M.; Anderson, H. R.

doi:10.1029/ja080i016p02152

Cited by 39 publications

(13 citation statements)

References 9 publications

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“…If the electron thermal energy is assumed to be 100 eV, the energy of accelerated electrons reaches to 1 ∼ 10 keV. This is comparable with that of observed auroral energetic electrons [15][16][17][18].…”

Section: Simulation Resultssupporting

confidence: 65%

Improved Open Boundary Model for Plasma Particle Simulations

Hasegawa

Sato

2010

Plasma and Fusion Research

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An open system one-dimensional electrostatic particle code that adopts the new constant current generator model has been developed. Using this new model, we have been able to study various phenomena at large electron drift velocities, where the original model is not applicable. In this new model, the contribution of the ion flux, which is not considered in the original model, is added into the electric current. By examining the code, we find that the result in a case where the electron drift velocity is smaller than the electron thermal velocity is similar to that of a previous study, which showed double layer creation as a result of ion-acoustic instability. We also present the results of simulations of an electron drift velocity comparable to or larger than the electron thermal velocity.

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Section: Simulation Resultssupporting

confidence: 65%

Improved Open Boundary Model for Plasma Particle Simulations

Hasegawa

Sato

2010

Plasma and Fusion Research

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“…This paper describes the results of a vector magnetometer experiment carried aboard a Nike-Tomahawk sounding rocket payload (NASA 18.112 UE) launched on February 25, 1972, UT. The experiment package also carried an array of charged particle detectors and a neutral hydrogen detector, which are discussed in other papers in this issue [Pazich and Anderson, 1975; $piger and Iglesias and Anderson, 1975]. The magnetometer system and data reduction methods have been described in previous publications [e.g., Park and Cloutlet, 1971], and only a simplified description will be given here.…”

Section: Introductionmentioning

confidence: 99%

Rocket-based magnetic observations of auroral birkeland currents in association with a structured auroral arc

Casserly¹,

Cloutier²

1975

J. Geophys. Res.

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A rocket‐borne experiment package containing a vector magnetometer and an array of charged particle detectors was launched over a structured auroral arc from Poker Flat, Alaska, at 0722 UT on February 25, 1972. This paper discusses the results of the magnetometer data which indicate the existence of a pair of oppositely directed Birkeland current sheets with magnitudes of ∼2.7 × 10−5 A/m² and a system of two eastward electrojets. The downward Birkeland current flowed to the south of the upward current which coincided with the location of the peak auroral luminosity and the region of maximum electron precipitation as measured by the on‐board particle detectors. Some changes in the magnetic field profile during the flight are interpreted as being due to movement of the sheet currents in range and azimuth corresponding to the motion of two large folds in the arc as determined from the all‐sky camera pictures.

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“…Anderson and P.A. Cloutier and colleagues have carried out detailed studies of rocket launch data involving passage through a discrete auroral arc in the evening sector (ANDERSON and CLOUTIER, 1975;PAZICH and ANDERSON, 1975;SPIGER and ANDERSON, 1975;CASSERLY and CLOUTIER, 1975). The arc lay near the poleward edge of an eastward electrojet.…”

Section: Currents Into Ionospherementioning

confidence: 99%

Electric and magnetic fields in the ionosphere and magnetosphere.

Rostoker

1978

J. geomagn. geoelec

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Recent observations of electric fields in the ionosphere using various measurement techniques have led to important advances in the understanding of magnetosphere-ionosphere coupling. In particular the discovery of evidence for parallel electric fields in the altitude range 2,000-10,000 km has an important impact on the question of auroral acceleration processes. More detailed mapping of large scale field-aligned current configurations on field lines penetrating the auroral oval are leading to more complete models for the generator processes in the outer magnetosphere which are associated with energy dissipation in the near-earth environment. Recent observations of significant electric fields equatorward of the auroral oval indicate that significant interaction between the magnetosphere and ionosphere takes place outside of the auroral oval. New techniques are presently being developed for more quantitative studies of magnetosphere-ionosphere coupling.

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Rocket measurement of auroral electron fluxes associated with field-aligned currents

Cited by 39 publications

References 9 publications

Improved Open Boundary Model for Plasma Particle Simulations

Improved Open Boundary Model for Plasma Particle Simulations

Rocket-based magnetic observations of auroral birkeland currents in association with a structured auroral arc

Electric and magnetic fields in the ionosphere and magnetosphere.

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