Results 21 to 30 of about 3,424,751 (303)

Magnetic Reconnection in the Martian Magnetotail: Occurrence Rate and Impact on Ion Loss

open access: yesGeophysical Research Letters, 2023
The current sheet is crucial in releasing magnetic free energy in cosmic plasmas via fast magnetic reconnection or wave excitation. This research investigates the characteristics of the Martian tail current sheet by analyzing data acquired from the Mars ...
Lei Wang   +6 more
doaj   +1 more source

A Highway for Atmospheric Ion Escape from Earth during the Impact of an Interplanetary Coronal Mass Ejection

open access: yesAstrophysical Journal, 2022
A single satellite hardly measures the overall ion escape rate from a planet. Therefore, the question concerning the long-term atmospheric evolution of whether a planetary magnetic field protects its atmosphere or aggravates atmospheric loss remains ...
Hui Zhang   +11 more
semanticscholar   +1 more source

Influence of the Martian crustal magnetic fields on the Mars-solar wind interaction and plasma transport

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The plasma transport process is important for the ionosphere of Mars, which controls the structure of the ionosphere above an altitude of 200 km. Plasma transport from the dayside ionosphere is crucial for producing the nightside ionosphere on Mars.
Guokan Li   +8 more
doaj   +1 more source

Quantifying the Key Factors Affecting the Escape of Planetary Atmospheres

open access: yesThe Astrophysical Journal, 2023
The habitability of Earth-like planets is an increasingly important subject in astrophysics and in planetary sciences. Atmospheric escape plays a vital role in the evolution of the habitability of Earth-like planets.
J. Luo, H.-Q. He, G.-S. Tong, Jiao Li
doaj   +1 more source

Heavy Ion Escape From Martian Wake Enhanced by Magnetic Reconnection

open access: yesJournal of Geophysical Research: Planets, 2021
Mars is a dry planet with a history of a warm and wet environment. Hydrogen and oxygen continuously escape from the unmagnetized planet. Although the heavy ion escape rate in the wake region is low due to Mars' obstruction, there are reports of events ...
Lei Wang   +7 more
semanticscholar   +1 more source

Martian Proton Aurora Brightening Reveals Atmospheric Ion Loss Intensifying

open access: yesGeophysical Research Letters, 2023
The Martian proton aurora is a distinct aurora phenomenon resulting from the direct deposition of solar wind energy into Mars' dayside atmosphere. What solar wind parameters influence the aurora activity in the short term is yet unknown, as are the ...
Fei He   +12 more
doaj   +1 more source

MAVEN‐STATIC Observations of Ion Temperature and Initial Ion Acceleration in the Martian Ionosphere

open access: yesGeophysical Research Letters, 2022
Though ion escape to space is an important mechanism for atmospheric loss at Mars, the processes that accelerate ions to escape velocity have not been fully identified and quantified.
K. G. Hanley   +4 more
doaj   +1 more source

Two Types of Martian Magnetotail Current Sheets: MAVEN Observations of Ion Composition

open access: yesGeophysical Research Letters, 2023
Using measurements from the Mars Atmosphere and Volatile EvolutioN mission, we investigate the densities of H+ (nH+), O+ (nO+), and O2+ (no2+), respectively, in the Martian magnetotail current sheet.
X. Z. Li   +8 more
doaj   +1 more source

Constituting We the People [PDF]

open access: yes, 1997
We study roles of the thermosphere and exosphere on the Martian ionospheric structure and ion escape rates in the process of the solar wind-Mars interaction.
Acuña   +79 more
core   +3 more sources

Planetary magnetic field control of ion escape from weakly magnetized planets [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
Intrinsic magnetic fields have long been thought to shield planets from atmospheric erosion via stellar winds; however, the influence of the plasma environment on atmospheric escape is complex.
H. Egan   +3 more
semanticscholar   +1 more source

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