Results 81 to 90 of about 260,255 (207)

Iterative and Steady Black Auroral Stripes and Their Possible Causality in Plasma‐Sheet Electron Distributions: Implications From Low‐Altitude Reimei Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Iterative black auroral stripes were identified in auroral images obtained by the low‐altitude microsatellite Reimei. These steady and narrow black stripes are a remarkable feature of diffuse auroras generated by energetic electrons precipitating at higher latitudes than pulsating auroras.
Masafumi Hirahara   +4 more
wiley   +1 more source

Ionospheres and atmosphere of non-magnetic planets and solar wind interaction: Part I - Venus

open access: yes, 2002
The solar-planetary interaction is unique for non-magnetic planets, since the solar wind interacts directly with the atmospheres and ionospheres of these planets.
Dwivedi, A. K., Mahajan, K. K.
core   +1 more source

The two-frequency, bistatic radar-occultation method for the study of planetary ionospheres scientific reports no. 1 and no. 7

open access: yes, 1965
Method for study of planetary ionospheres based on radio wave propagation between earth and ...
Smith, F. L., III   +3 more
core  

Influence of Solar Sails on Magnetic Field Measurements in Space Plasmas

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Solar sail technology is ready to be deployed in a satellite mission carrying a science‐grade magnetometer. In preparation for such a mission, it is essential to characterize the interactions between the sail and the ambient plasma that could affect the magnetometer readings.
Konstantinos Horaites   +2 more
wiley   +1 more source

The Response of the Martian Ion Precipitation to Extreme Solar Events

open access: yesThe Astrophysical Journal
Ion precipitation is a major driver of sputtering on Mars, yet its behavior under extreme solar wind conditions remains poorly characterized. Using MAVEN observations, we analyze 124 extreme solar wind events from 2014 to 2018 together with a unique ...
Xinzhi Qiu   +4 more
doaj   +1 more source

Ionospheric Ambipolar Electric Fields of Mars and Venus: Comparisons Between Theoretical Predictions and Direct Observations of the Electric Potential Drop

open access: yesGeophysical Research Letters, 2019
We test the hypothesis that their dominant driver of a planetary ambipolar electric field is the ionospheric electron pressure gradient (∇Pe). The ionospheres of Venus and Mars are mapped using Langmuir probe measurements from NASA's Pioneer Venus ...
Glyn Collinson   +7 more
doaj   +1 more source

Ionic reactions in the laboratory and in planetary atmospheres

open access: yes, 1979
A detailed understanding of the ionospheres of the Earth and planets requires knowledge of the rates of many ionic reactions as well as of electron recombination coefficients and photoionization cross sections.
F. R. S., H. S. W. Massey
core   +1 more source

Ionosphere‐Thermosphere Responses to the March 2023 Geomagnetic Storm Using Observations and TIEGCM Simulations Driven by Data Assimilated Aurora and Electric Fields

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract We investigate Ionosphere‐Thermosphere (IT) responses to the March 2023 geomagnetic storm using GOLD and PFISR observations, along with TIEGCM simulations driven by data‐assimilated aurora and electric fields. A Lattice Kriging approach is implemented to assimilate auroral electron flux and characteristic energy from ground‐based (THEMIS/ASIs)
Prakash Poudel, Xian Lu
wiley   +1 more source

Temperatures of Jupiter’s Upper Atmosphere: The Role of the Planetary Magnetic Field

open access: yesThe Astrophysical Journal Letters
The primary source of heating in the upper atmospheres (thermospheres) of giant planets has been the subject of long debate. The conundrum (or “energy crisis”) consists in observed thermosphere temperatures at low and midlatitudes exceeding values ...
Ingo C. F. Müller-Wodarg   +4 more
doaj   +1 more source

Arbitrary amplitude ion-acoustic solitary and shock waves in an unmagnetized electron–proton–ion nonthermal plasma [PDF]

open access: yesAIP Advances
This study thoroughly examines the features of arbitrary amplitude ion-acoustic nonlinear structures, including both solitary and shock waves (double layers), in an unmagnetized electron–proton–ion plasma where electrons follow Cairns distributions and ...
Weaam Alhejaili   +4 more
doaj   +1 more source

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