Articles with "plasma density" as a keyword



North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations†

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016ja023404

Abstract: In this paper, we present observations of cold (0-70 eV) plasma density in the magnetotail lobes. The observations and results are based on 16 years of Cluster observation of spacecraft potential measurements converted into local… read more here.

Keywords: north south; cold plasma; density; density magnetotail ... See more keywords

Empirical modeling of the plasmasphere dynamics using neural networks

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017ja024406

Abstract: We propose a new empirical model for reconstructing the global dynamics of the cold plasma density distribution based only on solar wind data and geomagnetic indices. Utilizing the density database obtained using the NURD (Neural-network-based… read more here.

Keywords: neural networks; plasmasphere dynamics; model; solar wind ... See more keywords

On Spatial Structuring of the F2 Layer Studied by the Satellite Radio Sounding of the Ionosphere Disturbed by High-Power HF Radio Waves

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Published in 2018 at "Radiophysics and Quantum Electronics"

DOI: 10.1007/s11141-018-9831-5

Abstract: We present the results of studying the characteristics of the artificial plasma structures excited in the ionospheric F2 region modified by high-power HF radio waves. The experiments were carried out at the Sura heating facility… read more here.

Keywords: high power; radio waves; radio; density ... See more keywords

Imaging Plasma Density Structures in the Soft X-Rays Generated by Solar Wind Charge Exchange with Neutrals

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Published in 2018 at "Space Science Reviews"

DOI: 10.1007/s11214-018-0504-7

Abstract: Both heliophysics and planetary physics seek to understand the complex nature of the solar wind’s interaction with solar system obstacles like Earth’s magnetosphere, the ionospheres of Venus and Mars, and comets. Studies with this objective… read more here.

Keywords: density; interaction; solar wind; density structures ... See more keywords
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Enhanced self-focusing of Laguerre-Gaussian laser beam in relativistic plasma under exponential plasma density transition

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Published in 2021 at "Chinese Journal of Physics"

DOI: 10.1016/j.cjph.2021.01.003

Abstract: Abstract In the current work, self-focusing of Laguerre-Gaussian laser beam under the influence of exponential plasma density transition in relativistic plasma is studied. It is observed that the spot size of laser beam shrinks as… read more here.

Keywords: plasma density; self focusing; laser beam; laser ... See more keywords

Exponential plasma density progression based self-focusing of laser in cold quantum plasma

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Published in 2019 at "Optik"

DOI: 10.1016/j.ijleo.2018.10.192

Abstract: Abstract This manuscript presents the analysis on exponential plasma density progression based self-focusing of the Gaussian laser beam in cold quantum plasma. It is noticed that beam width parameter gets reduced significantly because of the… read more here.

Keywords: quantum plasma; self focusing; plasma density; plasma ... See more keywords

Geomagnetic Storm‐Induced Plasma Density Enhancements in the Southern Polar Ionospheric Region: A Comparative Study Using St. Patrick's Day Storms of 2013 and 2015

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Published in 2020 at "Space Weather"

DOI: 10.1029/2019sw002383

Abstract: The occurrence of St. Patrick's Day (17 March) geomagnetic storms during two different years (2013 and 2015) with similar solar flux levels but varying storm intensity provided an opportunity to compare and contrast the responses… read more here.

Keywords: storm; patrick day; 2013 2015; plasma density ... See more keywords
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Global Maps of Equatorial Plasma Bubbles Depletions Based on FORMOSAT‐7/COSMIC‐2 Ion Velocity Meter Plasma Density Observations

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Published in 2023 at "Space Weather"

DOI: 10.1029/2023sw003438

Abstract: FORMOSAT‐7/COSMIC‐2 is the largest equatorial multi‐satellite constellation of six full‐size satellites to study the equatorial ionosphere. Each satellite is equipped by an ion velocity meter (IVM) instrument to provide high rate in situ plasma density… read more here.

Keywords: velocity meter; ion velocity; formosat cosmic; plasma density ... See more keywords

The Impact of Plasma Density Gradients on Lower Band Chorus Wave Propagation

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Published in 2025 at "Geophysical Research Letters"

DOI: 10.1029/2024gl113258

Abstract: Plasma density gradients, such as those that occur on plasmaspheric plume boundaries, have been shown to increase the obliquity of lower band chorus. Here, for the first time, this relationship is investigated more generally by… read more here.

Keywords: chorus; plasma density; density; wave propagation ... See more keywords

Significant Plasma Density Depletion From High‐ to Mid‐Latitude Ionosphere During the Super Storm in May 2024

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Published in 2025 at "Geophysical Research Letters"

DOI: 10.1029/2024gl113997

Abstract: We demonstrate the global response of the ionosphere to the geomagnetic super storm on 10–11 May 2024. The in situ observations from the Swarm spacecraft show a rapid depletion of plasma density in the dawn… read more here.

Keywords: super storm; storm; plasma density; depletion ... See more keywords

Electron energy increase in a laser wakefield accelerator using up-ramp plasma density profiles

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Published in 2019 at "Scientific Reports"

DOI: 10.1038/s41598-019-47677-5

Abstract: The phase velocity of the wakefield of a laser wakefield accelerator can, theoretically, be manipulated by shaping the longitudinal plasma density profile, thus controlling the parameters of the generated electron beam. We present an experimental… read more here.

Keywords: energy; density profiles; laser wakefield; wakefield accelerator ... See more keywords