Bi-Directional Energy Cascades and the Origin of Kinetic Alfv\'enic and Whistler Turbulence in the Solar Wind [PDF]
, 2014 The observed sub-proton scale turbulence spectrum in the solar wind raises the question of how that turbulence originates. Observations of keV energetic electrons during solar quite-time suggest them as possible source of free energy to drive the ...
Che, H., Goldstein, M. L., Viñas, A. F.
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Direct constraints on diffusion models from cosmic-ray positron data: Excluding the Minimal model for dark matter searches [PDF]
, 2014 Galactic Cosmic-ray (CR) transport parameters are usually constrained by the boron-to-carbon ratio. This procedure is generically plagued with degeneracies between the diffusion coefficient and the vertical extent of the Galactic magnetic halo.
Lavalle, Julien +2 more
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The dynamical nature of time [PDF]
, 2011 It is usually assumed that the "$t$" parameter in the equations of dynamics can be identified with the indication of the pointer of a clock. Things are not so easy, however.
A. Tiemblo +5 more
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Conformal Cosmology and the Pioneer Anomaly [PDF]
, 2010 We review the fundamental results of a new cosmological model, based on conformal gravity, and apply them to the analysis of the early data of the Pioneer anomaly.
Varieschi, Gabriele U.
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Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness [PDF]
, 2017 In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep.
Messerotti, Mauro +3 more
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On the entropy of plasmas described with regularized $\kappa$-distributions
, 2018 In classical thermodynamics the entropy is an extensive quantity, i.e.\ the sum of the entropies of two subsystems in equilibrium with each other is equal to the entropy of the full system consisting of the two subsystems.
Fahr, H. J. +4 more
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Role of reconnection in inertial kinetic-Alfven turbulence
, 2019 In a weakly collisional, low-electron-beta plasma, large-scale Alfv\'en turbulence transforms into inertial kinetic-Alfv\'en turbulence at scales smaller than the ion microscale (gyroscale or inertial scale).
Boldyrev, Stanislav, Loureiro, Nuno F.
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Multiscale nature of the dissipation range in gyrokinetic simulations of Alfv\'enic turbulence
, 2015 Nonlinear energy transfer and dissipation in Alfv\'en wave turbulence are analyzed in the first gyrokinetic simulation spanning all scales from the tail of the MHD range to the electron gyroradius scale.
Hammett, G. W. +4 more
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Spectral evolution of two-dimensional kinetic plasma turbulence in the wavenumber-frequency domain
, 2013 We present a method for studying the evolution of plasma turbulence by tracking dispersion relations in the energy spectrum in the wavenumber-frequency domain. We apply hybrid plasma simulations in a simplified two-dimensional geometry to demonstrate our
Comişel, H. +3 more
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, 2014 In the most common space solar power (SSP) system architectures, solar energy harvested by large satellites in geostationary orbit is transmitted to Earth via microwave radiation.
Cowley, A., Leitgab, M.
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