Results 1 to 10 of about 398,638 (331)
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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On Extended d-D Kappa Distribution [PDF]
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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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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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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Penalized likelihood approach for the four-parameter kappa distribution. [PDF]
J Appl Stat, 2022 The four-parameter kappa distribution (K4D) is a generalized form of some commonly used distributions such as generalized logistic, generalized Pareto, generalized Gumbel, and generalized extreme value (GEV) distributions. Owing to its flexibility, the K4D is widely applied in modeling in several fields such as hydrology and climatic change.
Papukdee N, Park JS, Busababodhin P.
europepmc +4 more sources
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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Unified description of kappa-type velocity distributions [PDF]
Physical Review E6 pages, 1 figure and 5 tables.
J. A. S. Lima, M. H. Benetti
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A statistical analysis of the Kappa-type energy spectrum distribution of radiation belt electrons observed by Van Allen Probes [PDF]
Earth and Planetary Physics, 2023 The energy spectrum of energetic electrons is a key factor representing the dynamic variations of Earth’s Van Allen radiation belts. Increased measurements have indicated that the commonly used Maxwellian and Kappa distributions are inadequate for ...
LuHuai Jiao +5 more
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Universality of kappa distributions
Europhysics LettersAbstract This paper reveals the universality of the particle energy distribution function, despite the arbitrariness that characterizes the generalized thermodynamic entropic function. We show that the canonical distribution, that is, the distribution function that maximizes this entropy under the constraints of canonical ensemble, is ...
G. Livadiotis, D. J. McComas
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Modeling Space Plasma Dynamics with Anisotropic Kappa Distributions [PDF]
, 2012 Space plasmas are collisionpoor and kinetic effects prevail leading to wave fluctuations, which transfer the energy to small scales: wave-particle interactions replace collisions and enhance dispersive effects heating particles and producing suprathermal populations observed at any heliospheric distance in the solar wind.
M. Lazar +3 more
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