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The Structure of the Martian Ionosphere
After multiple Martian years and almost one full solar cycle in orbit, measurements from the MAVEN mission can now allow us to study the ionosphere. The statistical structure of the Martian ionosphere is assessed and presented here as a step towards a new empirical Martian Ionospheric Model for electron density and ...Laila Andersson +6 more
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Transterminator ion flow in the Martian ionosphere
Planetary and Space Science, 2010Abstract The upper ionospheres of Mars and Venus are permeated by the magnetic fields induced by the solar wind. It is a long-standing question whether these fields can put the dense ionospheric plasma into motion. If so, the transterminator flow of the upper ionosphere could explain a significant part of the ion escape from the planets atmospheres ...
Fränz, M. +6 more
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Effects of dust storms on the Martian ionosphere
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), 2019Dust storms on Mars, particularly the planet-encircling ones, are one of the most dynamic phenomena that substantially alter the temperatures and circulation patterns of the Martian lower atmosphere [1]. Observational and modeling studies have shown that the Martian ionosphere also responds to the lower atmospheric dust storms [2].
V. Leelavathi +4 more
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Design for stray-light reduction to a Martian ionospheric imager
Applied Optics, 2020We demonstrate a new design high-contrast optics suitable for use on a stray-light reduction. Two-dimensional distribution of diffracted light was numerically analyzed and confirmed by a laboratory measurement to determine its characteristics. Laboratory measurements confirm stray-light performance with ∼
Hiromu, Nakagawa +5 more
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Distortion of radar pulses by the Martian ionosphere
Radio Science, 2003In spacecraft borne radar investigations of planets such as Venus and Mars the waves must penetrate an ionospheric layer which causes absorption and dispersive phase delay if the waves reach the surface at all. If the purpose of the radar system is to explore the planetary subsurface, the radar frequency should be as low as possible for maximum skin ...
Armand, N., Smirnov, V., Hagfors, T.
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Electromagnetic Wave Propagation in the Martian Ionosphere
IETE Journal of Research, 1972The paper deals with some aspects of electromagnetic wave propagation in the Martian ionosphere. Using recent data, the effective collision frequency and high frequency conductivity have been calculated for all the three models, namely F2, F1 and E. The real part of the complex refractive index is then calculated for νeff = 0 and νeff ≠ 0.
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The chemistry of protonated species in the martian ionosphere
Icarus, 2015Abstract The Mars Atmosphere and Volatile Evolution Mission (MAVEN) spacecraft entered orbit around Mars on 22 September 2014. The Neutral Gas Ion Mass Spectrometer (NGIMS) instrument on this spacecraft will measure the ion densities with unprecedented sensitivity of ∼1 cm - 3 above the nominal periapsis altitude ∼150 km.
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Numerical Simulation of Martian Ionospheric Irregularities
Journal of Geophysical Research: PlanetsAbstract Martian ionospheric irregularities have been observed via Mars Atmosphere and Volatile EvolutioN (MAVEN) in situ measurements, but their generation mechanism is still unclear. In this work, we develop a two‐dimensional model to investigate the formation of Martian irregularities.
Konghan Jiang +3 more
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Plasma–Dust System in the Martian Ionosphere
Plasma Physics Reports, 2023Yu. S. Reznichenko +2 more
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