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Resonant Interactions Between Protons and Oblique Alfvén/Ion-Cyclotron Waves
Peera Pongkitiwanichakul, Benjamin D. G. Chandran, Philip A. Isenberg +1
Resonant interactions between ions and Alfvén/ion-cyclotron (A/IC) waves may play an important role in the heating and acceleration of the fast solar wind. Although such interactio…
Alfven Wave Reflection and Turbulent Heating in the Solar Wind from 1 Solar Radius to 1 AU: an Analytical Treatment
Benjamin D. G. Chandran, Joseph V. Hollweg
We study the propagation, reflection, and turbulent dissipation of Alfven waves in coronal holes and the solar wind. We start with the Heinemann-Olbert equations, which describe no…
Constraining Low-Frequency Alfvenic Turbulence in the Solar Wind Using Density Fluctuation Measurements
Benjamin D. G. Chandran, Eliot Quataert, Gregory G. Howes +2
One proposed mechanism for heating the solar wind, from close to the sun to beyond 10 AU, invokes low-frequency, oblique, Alfven-wave turbulence. Because small-scale oblique Alfven…
The Turbulent Heating Rate in Strong MHD Turbulence with Nonzero Cross Helicity
Benjamin D. G. Chandran, Eliot Quataert, Gregory G. Howes +2
Different results for the cascade power in strong, incompressible MHD turbulence with nonzero cross helicity appear in the literature. In this paper, we discuss the conditions unde…
Scale dependent alignment between velocity and magnetic field fluctuations in the solar wind and comparisons to Boldyrev's phenomenological theory
J. J. Podesta, A. Bhattacharjee, B. D. G. Chandran +2
(Abridged abstract) A theory of incompressible MHD turbulence recently developed by Boldyrev predicts the existence of a scale dependent angle of alignment between velocity and mag…
Buoyancy Instabilities in Galaxy Clusters: Convection Due to Adiabatic Cosmic Rays and Anisotropic Thermal Conduction
P. Sharma, B. D. G. Chandran, E. Quataert +1
Using a linear stability analysis and two and three-dimensional nonlinear simulations, we study the physics of buoyancy instabilities in a combined thermal and relativistic (cosmic…