Electric field measurements in the solar wind, bow shock, magnetosheath, magnetopause, and magnetosphere

Mozer, F. S.; Torbert, R. B.; Fahleson, U.; Fälthammar, Carl‐Gunne; Gonfalone, A.; Pedersen, Å.

doi:10.1007/bf00212624

Cited by 46 publications

(21 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Introductionmentioning

confidence: 91%

“…Observations of fluctuating electric fields at magnetospheric height and in shock regions have also been reported along and perpendicular to the magnetic field [25][26][27]. Earlier GEOS-1 and ISEE mission reported [25,28,29] electric field observation and related wave-particle observation in the magnetosphere. The effect of d.c electric field parallel to ambient magnetic field on the growth rate, resonant frequency, resonant energy and marginal stability of EMIC wave with generalized losscone distribution function in a low plasma β homogeneous plasma have been studied using the method of particle aspect analysis by Ahirwar et al [30].…”

Section: Introductionmentioning

confidence: 91%

See 1 more Smart Citation

Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma

Pandey¹,

Singh²

2010

PIER M

View full text Add to dashboard Cite

Abstract-Excitation of electromagnetic ion-cyclotron instability in the magneto plasma in the presence of perpendicular A.C. electric field for a generalized distribution function for background cold electrons and hot ion plasma has been studied. This distribution function is reducible to anisotropic and loss-cone type for different values of spectral index j. The particle trajectories have been estimated and used to find the dispersion relation and growth rate by using the method of characteristic solutions. Temporal electromagnetic ion cyclotron instability for various plasma parameters has been studied. The role of choice of parameters, distribution function and simultaneous presence of A.C. electric field is studied for excitation of electromagnetic ion cyclotron instability. The results have been used to explain the satellite observations of AMPTE/CCE and compared with earlier work done for temperature anisotropy and other types of distribution functions using other techniques.

show abstract

Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 91%

Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma

Pandey¹,

Singh²

2010

PIER M

View full text Add to dashboard Cite

show abstract

“…Various authors have discussed electric field measurement at magnetospheric heights and shock regions giving the values of AC field along and perpendicular to Earth's magnetic field [13][14][15]. Studies have also been done on the role of parallel AC and DC electric fields on the whistler mode instability in the magnetosphere.…”

Section: Introductionmentioning

confidence: 99%

Generation of Low Frequency Electromagnetic Wave by Injection of Cold Electron for Relativistic and Non- Relativistic Subtracted Bi-Maxwellian Distribution With Perpendicular Ac Electric Field for Magnetosphere of Uranus

Pandey¹,

Kaur²

2012

PIER B

View full text Add to dashboard Cite

Abstract-Effect of cold electron beam for Whistler mode waves have been studied for relativistic and non-relativistic subtracted biMaxwellian distribution in the presence of perpendicular AC electric field to magnetic field by using the method of characteristic solutions and kinetic approach. The detailed derivation and calculations has been done for dispersion relation and growth rate for magnetosphere of Uranus. Parametric analysis has been done by changing plasma parameters: thermal velocity, ac frequency, temperature anisotropy, etc.. The effect of AC frequency on the Doppler shifting frequency and comparative study of relativistic and non-relativistic effect on growth rate are analyzed. The new results using subtracted biMaxwellian distribution function are found and discussed in relation to a bi-Maxwellian distribution function. It is seen that the effective parameters for the generation of Whistler mode wave are not only the temperature anisotropy but also the relativistic factor, AC field frequency, amplitude of subtracted distribution and width of the losscone distribution function which has been discussed in result and discussion section.

show abstract

“…Electric field measurements at magnetospheric heights and shock region have given values of AC field along and perpendicular to Earth's magnetic field [16][17][18]. Various authors have discussed the role of parallel DC and AC electric fields on the whistler mode instability in the magnetosphere generally adopting plasma dispersion function which is based on anisotropic Maxwellian distributions to describe the resonant population [19,20].…”

Section: Introductionmentioning

confidence: 99%

Cold Plasma Injection on VLF Wave Mode for Relativistic Magnetoplasma With A.C. Electric Field

Pandey¹,

Pandey²

2008

PIER C

View full text Add to dashboard Cite

Abstract-The effect of cold plasma beam on electromagnetic whistler wave with perpendicular AC electric field has been studied by using the unperturbed Lorentzian (Kappa) distribution in the Earth's atmosphere for relativistic plasma. The cold plasma has been described by a simple Maxwellian distribution where as Lorentzian (Kappa) distribution function has been derived for relativistic plasma with temperature anisotropy in the presence of a perpendicular AC electric field to form a hot/warm background. The dispersion relation is obtained by using the method of characteristic solutions and kinetic approach. An expression for the growth rate of a system with added cold plasma injection has been calculated. Results for representative values of parameters suited to the Earth's magnetosphere has been obtained. It is inferred that in addition to the other factors, the relativistic plasma modifies the growth rate and it also shifts the wave band significantly. The relativistic electrons by increasing the growth rate and widening the bandwidth may explain a wide frequency range of whistler emissions in the Earth's magnetosphere.

show abstract

Electric field measurements in the solar wind, bow shock, magnetosheath, magnetopause, and magnetosphere

Cited by 46 publications

References 4 publications

Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma

Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma

Generation of Low Frequency Electromagnetic Wave by Injection of Cold Electron for Relativistic and Non- Relativistic Subtracted Bi-Maxwellian Distribution With Perpendicular Ac Electric Field for Magnetosphere of Uranus

Cold Plasma Injection on VLF Wave Mode for Relativistic Magnetoplasma With A.C. Electric Field

Contact Info

Product

Resources

About