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Reconstruction of nonmonotonic electron density profiles of the Martian topside ionosphere

open access: yesPlanetary and Space Science, 2010
One of the problems in reconstructing the real ionosphere from an ionogram is the occurrence of a 'valley,' where electron density decreases with altitude and make a non-monotonic profile.
J -S Wang
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Electron Temperature in the Martian Ionosphere

Publications of the Astronomical Society of Japan, 1972
Abstract Electron temperatures in the Martian ionosphere at the times of Mariner 4 and 6 missions are calculated in the continuous slowing down approximation by using new molecular data. It is concluded that thermal equilibrium between electron and neutral temperatures in the lower part of the ionosphere may exist only when the solar ...
Mikio Shimizu, Osamu Ashihara
openaire   +1 more source

The Solar Wind Interaction With the Martian Ionosphere/Atmosphere

Space Science Reviews, 2006
The interaction of the solar wind with the Martian exosphere and ionosphere leads to significant loss of atmosphere from the planet. Spacecraft data confirm that this is the case. However, the issue is how much is actually lost. Given that spacecraft coverage is sparse, simulation is one of the few ways for these estimates to be made. In this paper the
Stephen H. Brecht, Stephen A. Ledvina
openaire   +1 more source

Martian Ionospheric Observation and Modelling

2020
Abstract The Martian ionosphere is a plasma embedded within the neutral upper atmosphere of the planet. Its main source is the ionization of the CO2-dominated Martian mesosphere and thermosphere by energetic EUV solar radiation. The ionosphere of Mars is subject to an important variability induced by changes in its forcing mechanisms (
openaire   +1 more source

Ion-neutral reactions in the martian ionosphere

Planetary and Space Science, 1966
Abstract A number of reactions that might be important in the martian ionosphere have been studied and their rate coefficients have been measured with a pulsed flowing afterglow system. One of the most important of these is O+ + CO2 → O2+ + CO, which has a rate coefficient of about 10−9 cm+3 sec−1.
R.B. Norton   +3 more
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The Martian thermosphere/ionosphere at high and low solar activities

Advances in Space Research, 1996
Abstract We compare here models of the thermosphere/ionosphere of Mars at low and high solar activities, and we present heating rates and efficiencies due to the absorption of solar radiation in the 18 to 2000 A range. Using neutral model densities from the NCAR Mars Thermospheric General Circulation Model (MTGCM) of Bougher and co-workers, and solar
Fox, Jane L.   +2 more
openaire   +4 more sources

Electron impact ionization in the Martian ionosphere

AIP Conference Proceedings, 2007
A number of distinct hot plasma flux tubes are detected in the Martian ionosphere, primarily formed when the magnetospheric plasma is magnetically connected to the upper ionosphere. The electron reflectometer measurements have shown that magnetospheric electrons are sometimes observed not only close to the ionopause, but at low altitudes (
K. Dialynas   +3 more
openaire   +1 more source

Modification of the Martian ionosphere by the solar wind

Journal of Geophysical Research, 1969
Dynamic model for Martian ionosphere modification by solar wind, assuming negligible Mars magnetic moment and neutral ...
P. A. Cloutier   +2 more
openaire   +1 more source

Ionospheric Plasma Transported into the Martian Magnetosheath

2021
<p>How the heavy ionospheric ions escape the Martian atmosphere is still not solved. Missions such as the Mars Express (MEX) satellite have observed significant heavy ions (O<sub>2<sup>+</sup></sub> and Co<sub>2<sup>+</sup></sub>
Laila Andersson   +4 more
openaire   +1 more source

The Martian ionosphere in light of the Viking observations

Journal of Geophysical Research: Space Physics, 1978
A theoretical model has been constructed in which the ion density and the ion and electron temperature distributions are calculated by solving the coupled continuity‐momentum equations and the coupled energy equations. The latest experimental results from the Viking 1 and 2 landers are used to vary some of the parameters in the model in order to obtain
R. H. Chen, T. E. Cravens, A. F. Nagy
openaire   +1 more source

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