scholarly journals The integrated miniaturized electrostatic analyzer: A space plasma environment sensor

2020 ◽  
Vol 91 (12) ◽  
pp. 123302
Author(s):  
G. R. Wilson ◽  
C. A. Maldonado ◽  
C. L. Enloe ◽  
R. D. Balthazor ◽  
P. C. Neal ◽  
...  
Keyword(s):  
Space Plasma ◽  
Electrostatic Analyzer ◽  
Plasma Environment

scholarly journals Statistical Uncertainties of Space Plasma Properties Described by Kappa Distributions

Entropy ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 541
Author(s):  
Georgios Nicolaou ◽  
George Livadiotis
Keyword(s):  
Accurate Determination ◽  
Space Plasma ◽  
High Energy ◽  
Distribution Functions ◽  
Kappa Distribution ◽  
Plasma Properties ◽  
Electrostatic Analyzer ◽  
Bulk Parameters ◽  
Plasma Bulk

The velocities of space plasma particles often follow kappa distribution functions, which have characteristic high energy tails. The tails of these distributions are associated with low particle flux and, therefore, it is challenging to precisely resolve them in plasma measurements. On the other hand, the accurate determination of kappa distribution functions within a broad range of energies is crucial for the understanding of physical mechanisms. Standard analyses of the plasma observations determine the plasma bulk parameters from the statistical moments of the underlined distribution. It is important, however, to also quantify the uncertainties of the derived plasma bulk parameters, which determine the confidence level of scientific conclusions. We investigate the determination of the plasma bulk parameters from observations by an ideal electrostatic analyzer. We derive simple formulas to estimate the statistical uncertainties of the calculated bulk parameters. We then use the forward modelling method to simulate plasma observations by a typical top-hat electrostatic analyzer. We analyze the simulated observations in order to derive the plasma bulk parameters and their uncertainties. Our simulations validate our simplified formulas. We further examine the statistical errors of the plasma bulk parameters for several shapes of the plasma velocity distribution function.

Design of HCN laser based interferometer on the Space Plasma Environment Research Facility (SPERF)

2020 ◽  
Vol 15 (11) ◽  
pp. P11026-P11026
Author(s):  
Q.M. Xiao ◽  
Z.L. Zhang ◽  
Q.Y. Nie ◽  
P. E ◽  
Y.Y. Jia ◽  
...  
Keyword(s):  
Space Plasma ◽  
Research Facility ◽  
Plasma Environment ◽  
Hcn Laser ◽  
Environment Research

Temperature Effect on Primary Discharge Under Simulated Space Plasma Environment

2012 ◽  
Vol 40 (2) ◽  
pp. 345-350 ◽  
Author(s):  
Teppei Okumura ◽  
Hideto Mashidori ◽  
Masato Takahashi ◽  
Jiro Harada ◽  
Yohsuke Hagiwara ◽  
...  
Keyword(s):  
Temperature Effect ◽  
Space Plasma ◽  
Plasma Environment

scholarly journals Disturbance of plasma environment in the vicinity of the Astrid-2 microsatellite

2001 ◽  
Vol 19 (6) ◽  
pp. 655-666 ◽  
Author(s):  
N. Ivchenko ◽  
L. Facciolo ◽  
P. A. Lindqvist ◽  
P. Kekkonen ◽  
B. Holback
Keyword(s):  
Magnetic Field ◽  
Electric Fields ◽  
Space Plasma ◽  
Plasma Potential ◽  
Space Plasma Physics ◽  
Plasma Environment ◽  
Density Enhancement ◽  
Instruments And Techniques ◽  
Field Lines ◽  
Plasma Depletion

Abstract. The presence of a satellite disturbs the ambient plasma. The charging of the spacecraft creates a sheath around it, and the motion of the satellite creates a wake disturbance. This modification of the plasma environment introduces difficulties in measuring electric fields and plasma densities using the probe technique. We present a study of the structure of the sheath and wake around the Astrid-2 microsatellite, as observed by the probes of the EMMA and LINDA instruments. Measurements with biased LINDA probes, as well as current sweeps on the EMMA probes, show a density enhancement upstream of the satellite and a plasma depletion behind the satellite. The electric field probes detect disturbances in the plasma potential on magnetic field lines connected to the satellite.Key words. Space plasma physics (spacecraft sheaths, wakes, charging; instruments and techniques)

Kinetic Alfvén Waves in Space Plasma Environment with κ-electrons

2021 ◽  
Vol 919 (2) ◽  
pp. 71
Author(s):  
K. C. Barik ◽  
S. V. Singh ◽  
G. S. Lakhina
Keyword(s):  
Space Plasma ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Plasma Environment ◽  
Kinetic Alfvén Waves

ESCAPADE: coordinated multipoint measurements of Mars' near-space plasma environment

2020 ◽  
Author(s):  
Robert Lillis ◽  
Shannon Curry ◽  
Christopher Russell ◽  
Janet Luhmann ◽  
Aroh Barjatya ◽  
...  
Keyword(s):  
Space Plasma ◽  
Coordinated Multipoint ◽  
Plasma Environment ◽  
Near Space
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