Results 11 to 20 of about 154,923 (294)
On the Determination of Kappa Distribution Functions from Space Plasma Observations [PDF]
Entropy, 2020 The velocities of space plasma particles, often follow kappa distribution functions. The kappa index, which labels and governs these distributions, is an important parameter in understanding the plasma dynamics.
Georgios Nicolaou +2 more
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Olbert’s Kappa Fermi and Bose Distributions [PDF]
Frontiers in Physics, 2021 The quantum version of Olbert’s kappa distribution applicable to fermions is obtained. Its construction is straightforward but requires recognition of the differences in the nature of states separated by Fermi momenta. Its complement, the bosonic version
R. A. Treumann +2 more
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On Extended d-D Kappa Distribution
AxiomsThe thermal Doppler broadening of spectral profiles for particle populations in the absence or presence of potential fields can be described by kappa distributions.
Arak M. Mathai, Hans J. Haubold
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Sheath Formation in a Plasma with Regularized Kappa Distribution [PDF]
EntropyDebye shielding in an electron–ion plasma with regularized kappa distribution is examined. An unmagnetized collisionless plasma sheath with regularized kappa distributed electrons is investigated and the modified Bohm criterion is derived.
Rui Huo
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Kappa Distributions and Isotropic Turbulence [PDF]
Entropy, 2019 In this work, the two-point probability density function (PDF) for the velocity field of isotropic turbulence is modeled using the kappa distribution and the concept of superstatistics.
Elias Gravanis +3 more
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Effects of a kappa distribution function of electrons on incoherent scatter spectra [PDF]
Annales Geophysicae, 2000 In usual incoherent scatter data analysis, the plasma distribution function is assumed to be Maxwellian. In space plasmas, however, distribution functions with a high energy tail which can be well modeled by a generalized Lorentzian distribution ...
S. Saito +4 more
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Kappa and q Indices: Dependence on the Degrees of Freedom
Entropy, 2015 The kappa distributions, or their equivalent, the q-exponential distributions, are the natural generalization of the classical Boltzmann-Maxwell distributions, applied to the study of the particle populations in collisionless space plasmas.
G Livadiotis, Livadiotis George
exaly +3 more sources
Thermodynamic origin of kappa distributions
EPL (Europhysics Letters), 2018 Kappa distributions describe particle velocities and energies in collisionless particle systems such as space and astrophysical plasmas. While we understand the possible mechanisms that may generate these distributions in these plasmas, the thermodynamic
George Livadiotis
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Blackbody radiation, kappa distribution and superstatistics
Physica A: Statistical Mechanics and its Applications, 2021 In this work we apply superstatistics, in a rather novel way, to derive the blackbody radiation laws in the context of the kappa distribution. Superstatistics incorporates automatically an important aspect of the kappa distribution i.e.
Gravanis, Elias, Akylas, Evangelos
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Magnetic Spectra Comparison for Kappa-distributed Whistler Electron Fluctuations
The Astrophysical JournalIn the inner heliosphere, space measurements have revealed that plasma is well described by the kappa distributions, which are characterized by the value of the κ parameter.
Daniel H. P. +3 more
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