Results 81 to 90 of about 89,978 (184)
Observations of Kappa Distributions in Solar Energetic Protons and Derived Thermodynamic Properties
The Astrophysical JournalIn this paper, we model the high-energy tail of observed solar energetic proton energy distributions with a kappa distribution function. We employ a technique for deriving the thermodynamic parameters of solar energetic proton populations measured by the
M. E. Cuesta +15 more
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Kappa-like distribution functions inside magnetic clouds
Geofísica Internacional, 2008 En este trabajo estamos interesados en el estudio de la temperatura y el perfil de las colas supratermales de los electrones en nubes magnéticas. Para ello hemos modelado las funciones de distribución de velocidades de los electrones como superposición de dos poblaciones, core (Maxwellian) y halo (Tsallis o tipo kappa).
T. Nieves-Chinchilla, A. F. Viñas
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Thermodynamic Constraints on Solar Wind Radial Profiles
The Astrophysical JournalIn this paper, we use thermodynamics to develop the radial density profile of the solar wind, which is described by kappa distributions. First, we show the connection of kappa distributions with polytropic processes, emphasizing the two “paths”—i.e., a ...
G. Livadiotis, D. J. McComas
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Earth and Planetary PhysicsThe 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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Heat-flux Instabilities of Regularized Kappa Distributed Strahl Electrons Resolved with ALPS
The Astrophysical JournalThe fluid behavior of the solar wind is affected by the heat flux carried by the suprathermal electron populations, especially the electron strahl (or beam) that propagates along the magnetic field.
Dustin L. Schröder +3 more
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Continuation of Direct Products of Distributions
, 2000 If, in some problems, one has to deal with the ``product'' of distributions $\rm f_i$ (also called generalized functions) $\rm\bar T = \Pi^m_{i=1} f_i$, this product has a priori no definite meaning as a functional $(\rm \bar T, \phi) $ for $\rm\phi \in ...
Petermann, A.
core
پژوهشهای ریاضی, 2020 Introduction The kappa distribution was first introduced by Mielke (1973) and Mielke and Johnson (1973) for describing and analyzing precipitation data. This distribution is positively skewed and is widely applied when studying precipitation, wind speed ...
Maryam Sharafi +3 more
doaj
Astronomy & AstrophysicsContext. Ganymede’s UV aurorae, observed by HST and Juno/UVS, trace interactions between its atmosphere and Jupiter’s magneto-sphere. These emissions, dominated by O I lines at 130.4 and 135.6 nm, are driven by electron impact on species such as H2O, O ...
Benmahi B. +20 more
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Quasi-linear approach of bi-Kappa distributed electrons with dynamic κ parameter
Astronomy & AstrophysicsContext. In recent years, significant progress has been made in the velocity-moment-based quasi-linear (QL) theory of waves and instabilities in plasmas with nonequilibrium velocity distributions (VDs) of the Kappa (or κ) type.
Moya Pablo S. +5 more
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