Incoherent scatter plasma lines: Observations and applications

H Akbari, A Bhatt, C La Hoz, JL Semeter - Space Science Reviews, 2017 - Springer
Abstract Space plasmas are host to the electrostatic Langmuir waves and a rich range of
processes associated with them. Many of such processes that are of interest in micro-scale …

Photoelectron‐induced waves: A likely source of 150 km radar echoes and enhanced electron modes

MM Oppenheim, YS Dimant - Geophysical Research Letters, 2016 - Wiley Online Library
VHF radars near the geomagnetic equator receive coherent reflections from plasma density
irregularities between 130 and 160 km in altitude during the daytime. Though researchers …

Anomalous ISR echoes preceding auroral breakup: Evidence for strong Langmuir turbulence

H Akbari, JL Semeter, H Dahlgren… - Geophysical …, 2012 - Wiley Online Library
Experimental results obtained with the 449‐MHz Poker Flat Incoherent Scatter Radar
(PFISR) show unusual features in both the ion line and plasma line measurements during …

Localization of auroral Langmuir turbulence in thin layers

H Akbari, JL Semeter, MJ Nicolls… - Journal of …, 2013 - Wiley Online Library
The recently discovered coherent echoes in the Poker Flat Incoherent Scatter Radar data
with flat ion‐line spectrum and simultaneous double‐peaked plasma‐line spectrum in the …

Zakharov simulations of beam‐induced turbulence in the auroral ionosphere

H Akbari, P Guio, MA Hirsch… - Journal of Geophysical …, 2016 - Wiley Online Library
Recent detections of strong incoherent scatter radar echoes from the auroral F region, which
have been explained as the signature of naturally produced Langmuir turbulence, have …

Evidence for generation of unstable suprathermal electron population in the auroral F region

H Akbari, JL Semeter, MA Hirsch… - Geophysical …, 2015 - Wiley Online Library
Anomalous incoherent scatter radar (ISR) spectra confined to narrow altitude ranges near
the F region peak and correlated with dynamic auroral precipitation have previously been …

Plasma parameter analysis of the Langmuir decay process via Particle-in-Cell simulations

MA Diaz, M Zettergren, JL Semeter… - Annales …, 2012 - angeo.copernicus.org
The beam-plasma mechanism, based on the Langmuir decay process, has been proposed
to explain naturally enhanced ion-acoustic lines (NEIALs), which are spectral distortions in …

Detection of extreme and exceptional Langmuir wave packets in solar type III radio bursts

G Thejappa, RJ MacDowall - Journal of Geophysical Research …, 2020 - Wiley Online Library
We report the STEREO observations of two extreme and exceptional Langmuir wave
packets, which are the most intense wave packets ever detected in solar type III bursts; their …

Particle‐in‐cell simulation of incoherent scatter radar spectral distortions related to beam‐plasma interactions in the auroral ionosphere

MA Diaz, M Oppenheim, JL Semeter… - Journal of …, 2011 - Wiley Online Library
An electrostatic parallel particle‐in‐cell (EPPIC) code that allows for particle beam injections
and multiple boundary conditions is used to investigate the beam‐plasma interaction and its …

Simulación fluido-cinética de los efectos ionosféricos producidos por la inyección de partículas desde el espacio

AN Abarca Prouza - 2011 - repositorio.uchile.cl
El objetivo del presente trabajo de título es usar un sistema de simulación cinético de
plasma para analizar la factibilidad de que mediciones reales de un haz de electrones …