Results 11 to 20 of about 475 (211)

Photochemistry of planetary ionospheres [PDF]

open access: yesAdvances in Space Research, 1987
The basic photochemical processes in the upper atmospheres and ionospheresof the various bodiesin our solar system (planets, moons and comets)are similar. However, there are many different factors (e.g. gas composition, energy input, gravity) which control/change the relative importance of these controlling processes.
Nagy, Andrew F.
openaire   +4 more sources

Martian ionospheric response during the May 2024 solar superstorm [PDF]

open access: yesNature Communications
Solar energetic events can have considerable effects on planetary ionospheres. However, the erratic nature of these solar energetic events make observations difficult.
Jacob Parrott   +7 more
doaj   +2 more sources

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

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   +2 more sources

Bond-forming reactions of N22+ with C2H4, C2H6, C3H4 and C3H6 [PDF]

open access: yes, 2015
Mass spectrometry, coupled with position-sensitive coincidence detection, has been used to investigate the reactions of N22+ with various small hydrocarbon molecules (C2H4, C2H6, C3H4, c-C3H6 and n-C3H6) at collision energies below 10 eV in the centre-of-
Parkes, MA   +5 more
core   +1 more source

Meteoric ions in planetary ionospheres [PDF]

open access: yesAdvances in Space Research, 2001
Solar system debris, in the form of meteoroids, impacts every planet. The flux, relative composition and speed of the debris at each planet depends on the planet's size and location in the solar system. Ablation in the atmosphere evaporates the meteoric material and leaves behind metal atoms.
W. Dean Pesnell, J.M. Grebowsky
openaire   +1 more source

Perspective on Energetic and Thermal Atmospheric Photoelectrons

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Atmospheric photoelectrons are central to the production of planetary ionospheres. They are created by photoionization of the neutral planetary atmosphere by solar EUV and soft X-ray irradiance.
W. K. Peterson
doaj   +1 more source

An Ultra-Compact Ion Mass Spectrometer for Observations of Planetary Ionospheres [PDF]

open access: yes, 2023
The Compact Ion Mass Spectrometer (CIMS) is an ultra-low resource ion mass spectrometer being designed to make observations of low-energy space plasmas such as that in planetary ionospheres. The CIMS utilizes a laminated collimator to define the field-of-
Morning, Heidi   +10 more
core   +1 more source

Ion Loss within a Reconnection Exhaust near Mars: MAVEN Observations

open access: yesThe Astrophysical Journal, 2023
We present observations from Mars Atmosphere and Volatile EvolutioN of a reconnection exhaust, which was probably not ongoing, in the Martian magnetosheath. The reconnection jet with abundant heavy ions is directed outward to space.
Xiaojun Xu   +7 more
doaj   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley  

+1 more source

Comparative ionospheres: terrestrial and giant planets [PDF]

open access: yes, 2017
The study of planetary ionospheres within our solar system offers a variety of settings to probe mechanisms of photo-ionization, chemical loss, and plasma transport.
Luke Moore   +7 more
core   +1 more source

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