Results 11 to 20 of about 606 (259)
Dissociative recombination in the interstellar medium and planetary ionospheres
Molecular Physics, 2008 Dissociative recombination is a corner-stone reaction in the synthesis of interstellar molecules and plays an important role in the ionised layers of the atmospheres of the Earth, other planets, and their satellites. The studies of dissociative recombination reactions was for a long time dominated by afterglow techniques, and these techniques are used ...
W. D. Geppert, Mårten Larsson
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Planetary Waves in the Thermosphere-Ionosphere System.
Journal of geomagnetism and geoelectricity, 1996 In the limit of an isothermal atmosphere without dissipation, the equations governing atmospheric motions admit solutions corresponding to “free” (unforced) oscillations for discrete zonal wavenumbers and periods. Global oscillations belonging to the rotational subclass are referred to as free Rossby waves or Rossby normal modes.
J. M. Forbes
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Review of Venusian and Martian ionospheres
地球与行星物理论评, 2021 The launch of Tianwen 1 marks the brand-new stage of the deep space exploration of China, which calls for the foundation of planetary science education in China. In planetary science, the ionosphere is considered to be the region of an atmosphere where a
Yutian Cao +3 more
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What Is the Altitude of Thermal Equilibrium?
Geophysical Research Letters, 2023 Thermal equilibrium in planetary atmospheres occurs at altitudes where the ion, electron, and neutral temperatures are equal. Thermal equilibrium is postulated to occur in the collision‐dominated ionosphere.
W. K. Peterson +5 more
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The Astronomical Journal, 2023 The Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) on board Mars Express has been sampling the topside ionosphere of Mars since mid-2005. The analysis of the main reflection (nadir) of the ionosphere through the ionograms provided by
David Pacios +6 more
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Nightside Ionospheric Structure and Composition on Mars Driven by Energetic Electron Precipitation
The Astrophysical Journal, 2023 Ionospheric chemistry plays an unexpectedly important role in the evolution of planetary habitability. This study is dedicated to a detailed modeling of the nightside Martian ionospheric structure and composition, a topic that has been poorly explored ...
Shiqi Wu +6 more
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The Astrophysical Journal, 2023 The behavior of the Martian ionosphere during global dust storms has always been a popular topic. Based on many Mars Atmosphere and Volatile Evolution observations, a Martian ionospheric electron density model is constructed herein using a physical-grid ...
ShengBin Zhong +3 more
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The Astrophysical Journal, 2023 In this paper, we present a new tool to investigate the interaction of the solar wind with Venus with the approach of a global multifluid magnetohydrodynamics (MHD) model. The continuity, momentum, and energy equations for H ^+ , O ^+ , ${{\rm{O}}}_{2}^{+
Tong Dang +7 more
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Variability of Draped Interplanetary Magnetic Field in the Subsolar Martian Ionosphere
The Astrophysical Journal, 2023 In the absence of an intrinsic magnetic field, the solar wind interacts directly with the Martian atmosphere, and the interplanetary magnetic field (IMF) drapes around the ionosphere. With the aid of multi-instrument measurements from Mars Atmosphere and
J.-P. Huang, Y.-Q. Hao, H.-Y. Lu, J. Cui
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The Astronomical Journal, 2023 Different boundaries could be defined in a planetary ionosphere where the dominant process in function switches from one to the other. Identifying these boundaries and understanding their variations are hence crucial for disentangling the complexity of ...
Yutian Cao +4 more
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