Results 21 to 30 of about 319 (179)

Observation of CO2++ dication in the dayside Martian upper atmosphere

open access: yesEarth and Planetary Physics, 2020
Doubly charged positive ions (dications) are an important component of planetary ionospheres because of the large energy required for their formation.
Hao Gu   +7 more
doaj   +1 more source

Variability of Draped Interplanetary Magnetic Field in the Subsolar Martian Ionosphere

open access: yesThe 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
doaj   +1 more source

Review of Venusian and Martian ionospheres

open access: yes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 significant number of free thermal electrons and ions exist.
Yutian Cao   +3 more
openaire   +1 more source

Concurrent effects of Martian topography on the thermosphere and ionosphere at high northern latitudes

open access: yesEarth, Planets and Space, 2022
Martian topography modulated non-migrating tides play important roles in the upper atmosphere and thus in the ionosphere through their coupling, especially in their longitude variations. In this study, the neutral scale height (H n ) and ionospheric peak
Yiding Chen   +4 more
doaj   +1 more source

On dusty plasma formation in Martian ionosphere

open access: yesJournal of Physics: Conference Series, 2020
Abstract A self-consistent model for the formation and evolution of dusty plasmas in the Martian ionosphere is developed. The effects of the initial distributions of dust particles, as well as condensation and absorption of carbon dioxide and water molecules by dust particles, are studied.
Yu S Reznichenko   +2 more
openaire   +1 more source

Variability of the Martian ionosphere from the MAVEN Radio Occultation Science Experiment

open access: yesEarth and Planetary Physics, 2019
The Martian ionosphere is produced by a number of controlling processes, including solar extreme ultraviolet radiation (EUV) and X-ray ionization, impact ionization by precipitating electrons, and day-to-night transport.
MeiJuan Yao   +4 more
doaj   +1 more source

Response of photoelectron peaks in the Martian ionosphere to solar EUV/X-ray irradiance

open access: yesEarth and Planetary Physics, 2020
An important population of the dayside Martian ionosphere are photoelectrons that are produced by solar Extreme Ultraviolet and X-ray ionization of atmospheric neutrals.
XiaoShu Wu   +5 more
doaj   +1 more source

Radio Absorption in the Nightside Ionosphere of Mars During Solar Energetic Particle Events

open access: yesSpace Weather, 2023
Characterization, understanding, and prediction of the Martian radio environment are of increasing importance to the forthcoming human exploration of Mars.
Y. Harada   +5 more
doaj   +1 more source

MITM: A new Mars Ionosphere−Thermosphere Model

open access: yesEarth and Planetary Physics
In this study, we present an innovative Mars Ionosphere−Thermosphere Model (MITM), which is a time-dependent, three-dimensional (3-D) model that comprehensively represents the self-consistently coupled thermosphere and ionosphere of Mars within the ...
ZhiPeng Ren   +4 more
doaj   +1 more source

Unusual Enhancement in He(23S) Airglow Brightness Associated With Interplanetary Magnetic Field Northward Turnings During the 2025 New Year's Day Storm

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The upper thermosphere is important in the context of space weather, but continuous monitoring of the thermosphere at high latitudes remains limited despite its strong variations associated with geomagnetic activity. Orthohelium, He(23S), is found from the upper thermosphere to lower exosphere, and is a promising tracer of atmospheric dynamics.
Takanori Nishiyama   +6 more
wiley   +1 more source

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