Results 61 to 70 of about 89,978 (184)
Collision frequency and mean free path for plasmas described by kappa distributions
AIP Advances, 2019 The paper shows the surprising result of the universality of the mean-free-path formulation for plasmas described by kappa distributions. In particular, the ratio of the mean-free-path over the Debye length depends only on the Debye number – the number ...
G. Livadiotis
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, 2015 We report on the SDO/AIA and Hinode/EIS observations of a transient coronal loop. The loop brightens up in the same location after the disappearance of an arcade formed during a B8.9-class microflare three hours earlier. EIS captures this loop during its
Del Zanna, Giulio +10 more
core +1 more source
A nonextensive entropy path to probability distributions in solar wind turbulence [PDF]
Nonlinear Processes in Geophysics, 2005 The observed scale dependence of the probability distributions of the differences of characteristic solar wind variables is analyzed. Intermittency of the turbulent fluctuations at small-scale spatial separations is accompanied by strongly non-Gaussian ...
M. P. Leubner, M. P. Leubner, Z. Vörös
doaj
Phase transitions in the condition number distribution of Gaussian random matrices
, 2014 We study the statistics of the condition number $\kappa=\lambda_{\mathrm{max}}/\lambda_{\mathrm{min}}$ (the ratio between largest and smallest squared singular values) of $N\times M$ Gaussian random matrices.
Castillo, Isaac Pérez +2 more
core +3 more sources
Randall-Sundrum model with a small curvature and dimuon production at the LHC
, 2012 The $p_{\perp}$-distributions for the dimuon production at the LHC are calculated in the Randall-Sundrum scenario with a small curvature $\kappa$. The $pp$ collisions at 7 TeV and 14 TeV are considered.
Kisselev, A. V.
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, 2017 Context. Recent studies on Kappa distribution functions invoked in space plasma applications have emphasized two alternative approaches which may assume the temperature parameter either dependent or independent of the power-index $\kappa$.
Fichtner, H. +4 more
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Unified description of kappa-type velocity distributions
Physical Review E6 pages, 1 figure and 5 tables.
J. A. S. Lima, M. H. Benetti
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, 2013 In this paper we develop tools for observers to use when analysing nebular spectra for temperatures and metallicities, with two goals: to present a new, simple method to calculate equilibrium electron temperatures for collisionally excited line flux ...
Dopita, Michael A. +4 more
core +1 more source
A Nonextensive Entropy Approach to Kappa-Distributions
Astrophysics and Space Science, 2002 Most astrophysical plasmas are observed to have velocity distribution functions exhibiting non-Maxwellian suprathermal tails. The high energy particle populations are accurately represented by the family of kappa-distributions where the use of these distributions has been unjustly criticized because of a perceived lack of theoretical justification.
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Electron Kappa Distributions in Astrophysical Nebulae
, 2017 Until recently, it had been assumed that the electrons in astrophysical nebulae (HII regions and planetary nebulae) are in thermal equilibrium, with energies described by the Maxwell–Boltzmann distribution. This may not always be true. Based on satellite and space probe measurements of electron energies in the solar system, where nonequilibrium energy ...
Nicholls, David +3 more
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