Results 11 to 20 of about 3,424,751 (303)

Bursty Ion Escape Fluxes at Mars [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2021
Based on the Mars Atmosphere and Volatile Evolution measurements we have observed cases when the fluxes of oxygen ions escaping the Martian ionosphere exceed their median values by more than a factor of 100.
E. Dubinin   +6 more
semanticscholar   +4 more sources

Global Venus‐Solar Wind Coupling and Oxygen Ion Escape [PDF]

open access: yesGeophysical Research Letters, 2021
The present‐day Venusian atmosphere is dry, yet, in its earlier history a significant amount of water evidently existed. One important water loss process comes from the energy and momentum transfer from the solar wind to the atmospheric particles.
M. Persson   +7 more
semanticscholar   +3 more sources

Solar cycle variation of ion escape from Mars

open access: yesIcarus, 2021
Using Mars Express data from 2007 until 2020 we show how ion outflow from Mars varied over more than a solar cycle, from one solar minimum to another. The data was divided into intervals with a length of one Martian year, starting from 30 April 2007 and ...
H. Nilsson   +8 more
semanticscholar   +3 more sources

Stellar influence on heavy ion escape from unmagnetized exoplanets [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
Planetary habitability is in part determined by the atmospheric evolution of a planet; one key component of such evolution is escape of heavy ions to space.
H. Egan, R. Jarvinen, D. Brain
semanticscholar   +6 more sources

Impact of Martian Crustal Magnetic Field on the Ion Escape [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2020
Based on the Mars Atmosphere and Volatile EvolutioN (MAVEN) observations, we have analyzed the role of the crustal magnetic field on ion loss driven by the direct interaction of the solar wind with the Mars ionosphere.
E. Dubinin   +8 more
semanticscholar   +4 more sources

Ion Outflow and Escape in the Terrestrial Magnetosphere: Cluster Advances [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2021
Cluster was the first mission in the terrestrial magnetosphere to involve four spacecraft in a tetrahedral configuration, providing three‐dimensional measurements of the space plasma parameters.
I. Dandouras
semanticscholar   +2 more sources

Reduced Atmospheric Ion Escape Above Martian Crustal Magnetic Fields [PDF]

open access: yesGeophysical Research Letters, 2018
Martian crustal fields were considered as too weak to have a distinctive effect on global escape rates of Martian heavy ions. However, new observations by the Mars Atmosphere and Volatile Evolution mission reveal a more precise result and show a notably ...
K. Fan   +11 more
semanticscholar   +4 more sources

Enhanced Ion Escape Rate During IMF Rotation Under Weak Intrinsic Magnetic Field Conditions on a Mars‐Like Planet

open access: yesJournal of Geophysical Research: Space Physics, 2023
The rotation of the interplanetary magnetic field (IMF) provides details of the escape mechanism that varies with the interaction between the intrinsic magnetic field and the IMF.
S. Sakai   +6 more
semanticscholar   +1 more source

Ion escape fluxes from Mars [PDF]

open access: yesGeophysical Research Letters, 2007
A 3D, multi‐species, non‐ideal MHD numerical code was used to calculate the ion escape fluxes from Mars. The calculations were carried out for six cases with different nominal solar wind, solar cycle and crustal field orientation conditions and the total escape fluxes (the sum of the three major ionospheric species, O+, O2+, and CO2+) varied by about ...
Ma, Ying‐juan, Nagy, Andrew F.
openaire   +2 more sources

Oxygen Ion Escape at Venus Associated With Three‐Dimensional Kelvin‐Helmholtz Instability

open access: yesGeophysical Research Letters, 2022
How oxygens escape from Venus has long been a fundamental but controversial topic in the planetary research. Among various key mechanisms, the Kelvin‐Helmholtz instability (KHI) has been suggested to play an important role in the oxygen ion escape from ...
Tong Dang   +11 more
semanticscholar   +1 more source

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