Results 161 to 170 of about 68,935 (200)

Modification of Martian Ionosphere

IEEE Transactions on Plasma Science, 2021
To partially meet the communication requirements in Mars, low-frequency ground-to-ground communication is likely to be used in the future and hence, it is desirable to increase electron density in the Martian ionosphere. As a convenient means to this, we have proposed and explored the production of high electron density regions in the Martian ...
Sujeet Kumar Agarwal, Mahendra Singh Sodha   +1 more
openaire   +1 more source

Effects of Solar Wind Density and Velocity Variations on the Martian Ionosphere and Plasma transport—A MHD Model Study [PDF]

Journal of Geophysical Research: Space Physics, 2023
Solar wind dynamic pressure, consisting solar wind density and velocity , is an important external driver that controls Martian plasma environment. In this study, a 3D magnetohydrodynamic model is applied to investigate the separate influences of solar ...
James Anderson Wild, Jinbin Cao, Shibang Li   +2 more
exaly   +2 more sources

Martian Ionospheric Magnetic Fluctuations

2023
Understanding the properties and variability of the ionosphere is vital for understanding the atmosphere of Mars. The presence and property of waves provide insight into the plasma and magnetic environment. We conducted a search for 5 - 16 Hz signals below 400 km in magnetic field data from Mars Global Surveyor (MGS), the Mars Atmosphere and Volatile ...
Teresa Esman, Jared Espley, Jacob Gruesbeck, Christopher Fowler, Shaosui Xu, Meredith Elrod, Yuki Harada, Joe Giacalone, Alexa Halford, Anne Verbiscer   +9 more
openaire   +1 more source

On the extent of the Martian ionosphere

Journal of Geophysical Research, 1973
The boundary of the Martian ionosphere just above the photochemical layer, where solar-wind induced convection becomes important, is estimated. The Martian ionosphere is expected to terminate at an altitude of approximately 300 km.
S. J. Bauer, R. E. Hartle
openaire   +1 more source

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

Photoelectron fluxes in the Martian ionosphere

Journal of Geophysical Research: Space Physics, 1979
The equilibrium photoelectron distribution in the upper atmosphere of Mars is calculated and compared with a typical theoretical model of the photoelectron distribution in the upper atmosphere of the earth. The neutral upper atmosphere and ionosphere models used in the calculations for Mars are based on the Viking 1 neutral mass spectrometer and ...
G. P. Mantas, W. B. Hanson
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

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, M. B. McElroy, F. C. Michel   +2 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

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, Scott Thaller, Christopher Fowler, Gina DiBraccio, Kai Poh   +4 more
openaire   +1 more source