scholarly journals Whistler Mode Waves Below Lower Hybrid Resonance Frequency: Generation and Spectral Features

2017 ◽  
Vol 122 (10) ◽  
pp. 10,072-10,083 ◽  
Author(s):  
D. R. Shklyar ◽  
M. A. Balikhin
Keyword(s):  
Resonance Frequency ◽  
Lower Hybrid ◽  
Spectral Features ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Whistler Mode Waves ◽  
Frequency Generation ◽  
Lower Hybrid Resonance

scholarly journals Co-Existance of Lightning Generated Whistlers, Hiss and Lower Hybrid Noise Observed by e- POP (SWARM-E) –RRI

2020 ◽  
Author(s):  
Ashanthi Maxworth ◽  
Mark Gołkowski ◽  
Glenn Hussey
Keyword(s):  
Geomagnetic Field ◽  
Radiation Belts ◽  
Radio Receiver ◽  
Lower Hybrid ◽  
Wave Power ◽  
Dipole Antennas ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Whistler Mode Waves ◽  
Lower Hybrid Resonance

Whistler mode waves play a major role in regulating the lifetime of trapped electrons in the Earth's radiation belts. Specifically, whistler mode hiss waves are one of the mechanisms that maintains the slot region between the inner and outer radiation belts. The generation mechanism of hiss is a topic still under debate with at least three prominent theories present in the literature. Lightning generated whistlers in their ducted or non-ducted modes, are considered to be one of the possible sources of hiss. We present a study of new observations from the Radio Receiver Instrument (RRI) on the Enhanced Polar Outflow Probe (ePOP: currently known as SWARM-E). RRI consists of two orthogonal dipole antennas, which enables polarization measurements, when the satellite boresight is parallel to the geomagnetic field. Here we present 75 passes of ePOP - RRI from 2014 - 2018, in which lightning whistlers and hiss waves were observed. In more than 50% of those passes hiss is found to co-exist with the lightning whistlers. Moreover, the whistler observations are correlated with observations of wave power at the lower-hybrid resonance. The observations and a whistler mode ray-tracing study suggest that multiple-hop lightning induced whistlers can be a source of hiss and plasma instabilities in the magnetosphere.

scholarly journals Coexistence of Lightning Generated Whistlers, Hiss and Lower Hybrid Noise Observed by e-POP (SWARM-E)–RRI

Atmosphere ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 177
Author(s):  
Ashanthi Maxworth ◽  
Glenn Hussey ◽  
Mark Gołkowski
Keyword(s):  
Geomagnetic Field ◽  
Radiation Belts ◽  
Radio Receiver ◽  
Lower Hybrid ◽  
Wave Power ◽  
Dipole Antennas ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Whistler Mode Waves ◽  
Lower Hybrid Resonance

Whistler mode waves play a major role in regulating the lifetime of trapped electrons in the Earth’s radiation belts. Specifically, interaction with whistler mode hiss waves is one of the mechanisms that maintains the slot region between the inner and outer radiation belts. The generation mechanism of hiss is a topic still under debate with at least three prominent theories present in the literature. Lightning generated whistlers in their ducted or non-ducted modes are considered to be one of the possible sources of hiss. We present a study of new observations from the Radio Receiver Instrument (RRI) on the Enhanced Polar Outflow Probe (ePOP: also known as SWARM-E). RRI consists of two orthogonal dipole antennas, which enables polarization measurements, when the satellite boresight is parallel to the geomagnetic field. Here we present 105 ePOP - RRI events from 2014–2018, in which lightning whistlers(75) and hiss waves(39) were observed. In more than 50% of those whistler observations, hiss found to co-exist. Moreover, the whistler observations are correlated with observations of wave power at the lower-hybrid resonance. The observations and a whistler mode ray-tracing study suggest that multiple-hop lightning induced whistlers can be a source of hiss and plasma instabilities in the magnetosphere.

scholarly journals Simulation Study of Energetic Ion Driven Instabilities near the Lower Hybrid Resonance Frequency in a Plasma with Increasing Density

2019 ◽  
Vol 14 (0) ◽  
pp. 3401112-3401112 ◽  
Author(s):  
Mieko TOIDA ◽  
Hiroe IGAMI ◽  
Kenji SAITO ◽  
Tsuyoshi AKIYAMA ◽  
Shuji KAMIO ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Simulation Study ◽  
Lower Hybrid ◽  
Hybrid Resonance ◽  
Lower Hybrid Resonance

Ion Heating near the Lower Hybrid Resonance Frequency

1974 ◽  
Vol 37 (1) ◽  
pp. 288-288 ◽  
Author(s):  
Shojun Ohmura ◽  
Hideo Kozima ◽  
Yoshimitsu Amagishi ◽  
Kiyoe Kato
Keyword(s):  
Resonance Frequency ◽  
Lower Hybrid ◽  
Ion Heating ◽  
Hybrid Resonance ◽  
Lower Hybrid Resonance
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