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- Title
The Density and Temperature Distributions of Thermal Protons in the Magnetic Equatorial Plane of the Earth's Plasmasphere According to the INTERBALL-1 Spacecraft Data.
- Authors
Kotova, G. A.; Bezrukikh, V. V.
- Abstract
Cold (<1 eV) plasma measurements in the Earth's inner magnetosphere are used to deduce proton density and temperature distributions, as well as the potential of a spacecraft with a wide-angle analyzer onboard the INTERBALL-1 spacecraft. We analyzed these quantities recorded near the plane of the geomagnetic equator. Quantitative expressions are obtained for the proton density and temperature distribution in the magnetic equatorial plane of the plasmasphere in the entire range of the McIlwain L-parameter (distance to the Earth center in units of the Earth's radii in the equatorial plane). The temperature of protons in the plasmasphere significantly depends on the local time and is determined mainly by the plasma temperature in the underlying ionosphere. The rate of increase in the proton temperature in the plasmasphere relative to the electron temperature in the ionosphere depends on the phase of the solar activity cycle.
- Publication
Geomagnetism & Aeronomy, 2022, Vol 62, Issue 5, p546
- ISSN
0016-7932
- Publication type
Article
- DOI
10.1134/S0016793222050061