Results 41 to 50 of about 5,834 (247)

Effect of the mirror force on the collision rate due to energetic electron precipitation: Monte Carlo simulations

open access: yesEarth, Planets and Space, 2023
We study the effect of the mirror force on the collision rate due to the energetic electron precipitation into the ionosphere. We solve the motion of individual precipitating electrons with the mirror force, where collisions with neutral gas are computed
Yuto Katoh   +4 more
doaj   +1 more source

Energetic electron precipitation from the inner zone

open access: yesGeophysical Research Letters, 1997
Energetic electron precipitation flux from the Earth's inner radiation belt (L≤2) is usually below the detection threshold of current satellite instrumentation. Theoretical estimates of the longitudinally and interhemispherically averaged rate of precipitation have been obtained by evaluating the equilibrium electron pitch angle distribution in the ...
Bob Abel   +2 more
openaire   +1 more source

Solar wind modulation of the Martian ionosphere observed by Mars Global Surveyor [PDF]

open access: yesAnnales Geophysicae, 2004
Electron density profiles in the Martian ionosphere observed by the radio occultation experiment on board Mars Global Surveyor have been analyzed to determine if the densities are influenced by the solar wind.
J.-S. Wang, J.-S. Wang, E. Nielsen
doaj   +1 more source

Longitudinal hotspots in the mesospheric OH variations due to energetic electron precipitation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Using Microwave Limb Sounder (MLS/Aura) and Medium Energy Proton and Electron Detector (MEPED/POES) observations between 2005–2009, we study the longitudinal response of nighttime mesospheric OH to radiation belt electron precipitation.
M. E. Andersson   +4 more
doaj   +1 more source

Intense Energetic Electron Precipitation Caused by the Self‐Limiting of Space Radiation

open access: yesGeophysical Research Letters, 2023
Understanding intense electron precipitation is crucial for characterizing radiation belt loss and assessing related impacts on the atmosphere. We investigate the evolution of electron flux during an ensemble of 70 geomagnetic storms, focusing on ...
L. Olifer   +5 more
doaj   +1 more source

Remote sensing of energetic electron precipitation

open access: yes, 2020
Charged particles trapped in Earth's magnetic fields slam or precipitate into the atmosphere during geomagnetic disturbances in the Near-Earth space environment. The particles ionize, excite, and heat the neutral gas, leading to the optical aurora. Below the peak of optical auroral emissions is the ionospheric D-region extending from 70--90 km.
openaire   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Nightside Ionospheric Structure and Composition on Mars Driven by Energetic Electron Precipitation

open access: yesThe Astrophysical Journal, 2023
Ionospheric chemistry plays an unexpectedly important role in the evolution of planetary habitability. This study is dedicated to a detailed modeling of the nightside Martian ionospheric structure and composition, a topic that has been poorly explored ...
Shiqi Wu   +6 more
doaj   +1 more source

Is Solar Wind electron precipitation a source of neutral heating in the nightside Martian upper atmosphere?

open access: yesEarth and Planetary Physics, 2021
Solar Wind (SW) electron precipitation is able to deposit a substantial amount of energy in the nightside Martian upper atmosphere, potentially exerting an influence on its thermal structure. This study serves as the first investigation of such an issue,
LongKang Dai   +6 more
doaj   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

open access: yesFEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta   +7 more
wiley   +1 more source

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